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Groups > comp.sys.mac.apps > #8685 > unrolled thread
| Started by | Paul Förster <paul.foerster@gmx.net> |
|---|---|
| First post | 2012-03-27 11:59 +0200 |
| Last post | 2012-03-30 00:22 +0100 |
| Articles | 20 on this page of 51 — 16 participants |
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Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-03-27 11:59 +0200
Re: Scanner software for Mac Warren Oates <warren.oates@gmail.com> - 2012-03-27 07:57 -0400
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-03-27 14:31 +0200
Re: Scanner software for Mac gtr <xxx@yyy.zzz> - 2012-03-27 07:20 -0700
Re: Scanner software for Mac jamiekg@wizardling.geek.nz (Jamie Kahn Genet) - 2012-03-28 05:28 +1300
Re: Scanner software for Mac Walter Bushell <proto@panix.com> - 2012-03-27 12:52 -0400
Re: Scanner software for Mac jamiekg@wizardling.geek.nz (Jamie Kahn Genet) - 2012-03-28 06:42 +1300
Re: Scanner software for Mac Warren Oates <warren.oates@gmail.com> - 2012-03-27 14:44 -0400
Re: Scanner software for Mac jamiekg@wizardling.geek.nz (Jamie Kahn Genet) - 2012-03-28 08:17 +1300
Re: Scanner software for Mac gtr <xxx@yyy.zzz> - 2012-03-27 13:04 -0700
Re: Scanner software for Mac Erilar <drache@chibardun.netinvalid> - 2012-03-27 21:01 +0000
Re: Scanner software for Mac jamiekg@wizardling.geek.nz (Jamie Kahn Genet) - 2012-03-29 02:28 +1300
Re: Scanner software for Mac Warren Oates <warren.oates@gmail.com> - 2012-03-28 09:59 -0400
Re: Scanner software for Mac jamiekg@wizardling.geek.nz (Jamie Kahn Genet) - 2012-03-29 05:16 +1300
Re: Scanner software for Mac Fred Moore <fmoore@gcfn.org> - 2012-03-28 11:00 -0400
Re: Scanner software for Mac jamiekg@wizardling.geek.nz (Jamie Kahn Genet) - 2012-03-29 05:16 +1300
Re: Scanner software for Mac Walter Bushell <proto@panix.com> - 2012-03-30 23:40 -0400
Re: Scanner software for Mac dorayme <dorayme@optusnet.com.au> - 2012-03-28 10:16 +1100
Re: Scanner software for Mac Ed Anson <EdAnson@comcast.net> - 2012-03-27 18:07 -0400
Re: Scanner software for Mac gtr <xxx@yyy.zzz> - 2012-03-27 15:14 -0700
Re: Scanner software for Mac Wes Groleau <Groleau+news@FreeShell.org> - 2012-03-27 22:40 -0400
Re: Scanner software for Mac isw <isw@witzend.com> - 2012-03-27 10:09 -0700
Re: Scanner software for Mac dorayme <dorayme@optusnet.com.au> - 2012-03-28 10:26 +1100
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-01 15:08 +0200
Re: Scanner software for Mac Erilar <drache@chibardun.netinvalid> - 2012-04-01 20:29 +0000
Re: Scanner software for Mac isw <isw@witzend.com> - 2012-04-01 23:15 -0700
Re: Scanner software for Mac "John Varela" <newlamps@verizon.net> - 2012-04-02 17:45 +0000
Re: Scanner software for Mac Erilar <drache@chibardun.netinvalid> - 2012-04-03 19:55 +0000
Re: Scanner software for Mac Michael Siemon <mlsiemon@sonic.net> - 2012-04-03 15:14 -0700
Re: Scanner software for Mac isw <isw@witzend.com> - 2012-04-01 22:41 -0700
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-02 19:42 +0200
Re: Scanner software for Mac Wes Groleau <Groleau+news@FreeShell.org> - 2012-03-27 22:11 -0400
Re: Scanner software for Mac dorayme <dorayme@optusnet.com.au> - 2012-03-28 14:20 +1100
Re: Scanner software for Mac Wes Groleau <Groleau+news@FreeShell.org> - 2012-03-28 20:56 -0400
Re: Scanner software for Mac "John Varela" <newlamps@verizon.net> - 2012-04-02 17:21 +0000
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-02 19:50 +0200
Re: Scanner software for Mac "John Varela" <newlamps@verizon.net> - 2012-04-04 02:11 +0000
Re: Scanner software for Mac dorayme <dorayme@optusnet.com.au> - 2012-04-04 13:37 +1000
Re: Scanner software for Mac isw <isw@witzend.com> - 2012-04-03 21:01 -0700
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-05 15:50 +0200
Re: Scanner software for Mac isw <isw@witzend.com> - 2012-04-05 21:23 -0700
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-08 10:15 +0200
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-05 08:51 +0200
Re: Scanner software for Mac Wes Groleau <Groleau+news@FreeShell.org> - 2012-03-27 22:00 -0400
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-01 15:09 +0200
Re: Scanner software for Mac Paul Sture <paul@sture.ch> - 2012-04-01 16:14 +0200
Re: Scanner software for Mac Wes Groleau <Groleau+news@FreeShell.org> - 2012-04-02 00:57 -0400
Re: Scanner software for Mac Paul Förster <paul.foerster@gmx.net> - 2012-04-02 19:35 +0200
Re: Scanner software for Mac Howard.not@home.com (Howard) - 2012-03-28 22:03 +0100
Re: Scanner software for Mac Michael Vilain <vilain@NOspamcop.net> - 2012-03-28 16:26 -0700
Re: Scanner software for Mac Howard.not@home.com (Howard) - 2012-03-30 00:22 +0100
Page 2 of 3 — ← Prev page 1 [2] 3 Next page →
| From | Wes Groleau <Groleau+news@FreeShell.org> |
|---|---|
| Date | 2012-03-27 22:40 -0400 |
| Message-ID | <jkttml$tms$1@dont-email.me> |
| In reply to | #8701 |
On 03-27-2012 18:07, Ed Anson wrote:
> On 3/27/12 10:20 AM, gtr wrote:
>> I did the same a number of years ago with a cheap Cano scanner that no
>> longer works under Lion. I used their software. If their software won't
>> work for you, I'd contact Canon.
>
> I used to use CanoScan. While upgrading to Lion, I contacted Canon and
> they informed me that they are no longer supporting that software. They
> recommended (and I purchased) VueScan.
I have a Canon N650U purchased when I was using OS 9.
The scanner part was mediocre and the bundled OCR, editor, etc. sucked.
Was even worse when they ported it to OS X, and it has not been upgraded
since. SANE is better.
--
Wes Groleau
Measure with a micrometer, mark with chalk, and cut with an axe.
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| From | isw <isw@witzend.com> |
|---|---|
| Date | 2012-03-27 10:09 -0700 |
| Message-ID | <isw-2898C6.10092227032012@[216.168.3.50]> |
| In reply to | #8687 |
In article <9tdq8cFguU1@mid.individual.net>, Paul Förster <paul.foerster@gmx.net> wrote: > Hi Warren, > > > Care to elaborate? We've been using VueScan for a good ten years; we've > > scanned (literally) over a thousand images, prints, negatives, slides, > > documents and whatnot. We don't even use particularly good scanners > > (Canon 8400F at the moment). Granted, VueScan is a bit quirky to set up > > (or rather, to understand how to set up), but once you do, it does what > > it's supposed to do. > > > > Anyway, it's about as good as you're going to get without spending a > > bunch of money. You could Google for Iris Powerscan. I've never used it, > > but I'm told it's very good. > > ... I'm not worried about spending money. I registered VueScan and > payed the price as I do for any other piece of software I use. > > The story is this: I'm currently in the process of digitizing the whole > family image archive. That includes 110 format negatives, the most > crappy Polaroid instant photo shit, 60x60 negatives (two half-scans > necessary because of physical constraints of the lamp), 35 mm films > which are everything else than flat and all such stuff. Many negatives > date back to the 1960s and some are even older. You can imagine the > quality... > > Anyway, I have a long list of things I would wish VueScan had. It's not > its image correction features, though there are some points as well, > it's more user interface stuff, loads of small things that make using > handling VueScan's interface by far less effective as it could be. > > Examples: > > The save, print, Rotate and magnifier buttons don't belong in the lower > right corner. Moving the mouse there is way too long, i.e. all > essential controls are seperated too much. > > The selection frame should have an inner marking that shows where to > move the mouse to turn it to the hand allowing to move the whole frame. > > The selection frame's area should be clearly defined. I found that the > upper and left lines of the frame seem to include the scanned area > while the right and lower edges don't. The whole frame should either > completely surround the scanning area or are part of it but not both. > > Considering the state of the negatives, I can't just lock the *exact* > image colors, exposure, etc. Even if I calibrate the negative base > colors I get different results. Interestingly, if you tick for example > color correction on one image frame, then it shows a beautiful image > for one negative strip. Then, move the selection frame to the next > image on that same strip and all is lost, though the both images look > beautiful with the frame positioned around the first image. I know, > things like fading and color correction have to evaluate an image and > determin certain values based on that evaluation. Of course, that > evaluation naturally different for each and every picture. What I would > like is a features that allows applying the exact image properties of > scanning one image to another. Based on my experience scanning a few hundred 35mm slides, every transparency is its own thing, and you're not going to get a "one size fits all" set of parameters. I believe the primary reason for that is because while a contrast ratio of 100:1 is about the most you can expect from any sort of reflective image (a photographic print), a decently exposed transparency or negative can exceed that by an order of magnitude or more. Unlike reflective images, I believe transparencies are very close to the limit of the capabilities for most scanners, and individual adjustment is the only way to get acceptable scans, especially in the dark areas. Because of that extreme contrast ratio, I wound up having to set white and black levels individually for each slide, and I gave up totally on trying to add any sort of color or contrast correction into the mix. I used GIMP for all that. And a hint: do not include any of the slide mount in the active area of the scan. That is a "perfect black" which is not representative of any part of the actual image, and it will mess with the way the scanner handles the dark areas of the image. My scanner's slide holder can accommodate four slides, and I found it necessary to set the scan area individually for each slide, for each and every batch, in order to scan the maximum image area and none of the mount. This is due to the inherent lack of precision in the way the slides were positioned in the holder. The fact that different batches of slides came with different mounts (plastic, cardboard, ...) having slightly different outside dimensions and apertures did not help. Isaac
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| From | dorayme <dorayme@optusnet.com.au> |
|---|---|
| Date | 2012-03-28 10:26 +1100 |
| Message-ID | <dorayme-8810A0.10262128032012@news.albasani.net> |
| In reply to | #8693 |
In article <isw-2898C6.10092227032012@[216.168.3.50]>, isw <isw@witzend.com> wrote: > Based on my experience scanning a few hundred 35mm slides, every > transparency is its own thing, and you're not going to get a "one size > fits all" set of parameters. I believe the primary reason for that is > because while a contrast ratio of 100:1 is about the most you can expect > from any sort of reflective image (a photographic print), a decently > exposed transparency or negative can exceed that by an order of > magnitude or more. Unlike reflective images, I believe transparencies > are very close to the limit of the capabilities for most scanners, and > individual adjustment is the only way to get acceptable scans, > especially in the dark areas. > > Because of that extreme contrast ratio, I wound up having to set white > and black levels individually for each slide, and I gave up totally on > trying to add any sort of color or contrast correction into the mix. I > used GIMP for all that. > > And a hint: do not include any of the slide mount in the active area of > the scan. That is a "perfect black" which is not representative of any > part of the actual image, and it will mess with the way the scanner > handles the dark areas of the image. My scanner's slide holder can > accommodate four slides, and I found it necessary to set the scan area > individually for each slide, for each and every batch, in order to scan > the maximum image area and none of the mount. This is due to the > inherent lack of precision in the way the slides were positioned in the > holder. The fact that different batches of slides came with different > mounts (plastic, cardboard, ...) having slightly different outside > dimensions and apertures did not help. > This is very sensible advice. Scanning lots of different negs is good enough for proof sheeting or for making a thumbnail facility, but not for much more. I guess if you have a ton of stuff to get through it might be as quick to sort through the stuff to group like with like as much as possible and to take some time and care in this, rather than to rely on scan software to control for differences. Then decide on the quality you are happy with, that will determine if you need to do negs and trannies separately or in batches. -- dorayme
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| From | Paul Förster <paul.foerster@gmx.net> |
|---|---|
| Date | 2012-04-01 15:08 +0200 |
| Message-ID | <9tr2avFibnU1@mid.individual.net> |
| In reply to | #8693 |
Hi Isaac, > Based on my experience scanning a few hundred 35mm slides, every > transparency is its own thing, and you're not going to get a "one size > fits all" set of parameters. ... I have scanned about 600 or 700 negative film strips now, each 4-5 images. My experience is the same as yours, only, these strips are not just 35 mm, but also old 60x60, 110 and other funny formats. Colors even vary from image to image inside the same strip of film, no matter if I lock the film base color or not. > Because of that extreme contrast ratio, I wound up having to set white > and black levels individually for each slide, and I gave up totally on > trying to add any sort of color or contrast correction into the mix. I > used GIMP for all that. ... VueScan does that too, that's fine. > And a hint: do not include any of the slide mount in the active area of > the scan. That is a "perfect black" which is not representative of any > part of the actual image, and it will mess with the way the scanner > handles the dark areas of the image. ... yes, I know. :-) > My scanner's slide holder can > accommodate four slides, and I found it necessary to set the scan area > individually for each slide, for each and every batch, in order to scan > the maximum image area and none of the mount. This is due to the > inherent lack of precision in the way the slides were positioned in the > holder. The fact that different batches of slides came with different > mounts (plastic, cardboard, ...) having slightly different outside > dimensions and apertures did not help. ... I never use the plastic mounts. I put the negatives directly on the scanner glas. The reason is that there is no way to put a rolled up negative slide insode that darn mounting frame. Instead I put it on the glas and put another layer of glas on top of that. I went to a good glas manufacturer and had them make me a special white glass (mostly light and color neutral) so I can flatten the negative at least a little, increasing sharpness drastically because the slide gets flattened. Of course, I have to accommodate for the extra glass by moving the VueScan sliders a little (mostly brightness). That's all not the problem. My problem was (or is for that matter), that there is no way to lock and unlock all color settings exactly as they are from image to image. At least I didn't find a way yet. VueScan determines great colors for one image and, moving the selection frame to the next image, the colors get crappy. What I need is, have VueScan determine great colors for that one image, lock all settings and have it not evaluate the next image but exactly apply what it found for the first image. That would help me a lot. VueScan's lock image color and lock film base color features don't *exactly* do that. Hope this explains better what I meant. -- cul8er Paul paul.foerster@gmx.net
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| From | Erilar <drache@chibardun.netinvalid> |
|---|---|
| Date | 2012-04-01 20:29 +0000 |
| Message-ID | <jladr6$m5r$1@dont-email.me> |
| In reply to | #8819 |
While people who CAN scan slides are paying attention here, can someone tell me whether there's a way to do it without some kind of slide-scanning hardware? My Epson Artisan 610 has a number of adjustable stuff in its software, but I suspect there is no way to scan slides. . . Or is there? -- Erilar, biblioholic medievalist with iPad
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| From | isw <isw@witzend.com> |
|---|---|
| Date | 2012-04-01 23:15 -0700 |
| Message-ID | <isw-E61692.23155801042012@[216.168.3.50]> |
| In reply to | #8826 |
In article <jladr6$m5r$1@dont-email.me>, Erilar <drache@chibardun.netinvalid> wrote: > While people who CAN scan slides are paying attention here, can someone > tell me whether there's a way to do it without some kind of slide-scanning > hardware? My Epson Artisan 610 has a number of adjustable stuff in its > software, but I suspect there is no way to scan slides. . . Or is there? To scan slides or negatives, you need a source of light *behind* the film, *and* a way to make the light source inside the scanner shut off. Does your scanner have (even as an optional add-on) such an attachment? Or ... there are things like this: http://www.abstractconcreteworks.com/essays/scanning/Backlighter.html but I don't think they do a really good job. To do a good job on slides, a scanner needs to go well above the 300-600 dpi that works plenty well enough for reflective sources like photos or documents. The problem is that slides are only about one inch across and they contain an awful amount of "information", both spatially (number of "pixels") and also contrast ratio (brightness span from "black" to "white"). Depending on what use you want to make of the resulting scans, slides can be beneficially scanned at up to 4800 dpi, or even more, and many flat bed scanners will struggle (and fail) trying to handle the 2000:1 contrast ratio of a well-exposed Kodachrome. Absent a dedicated slide scanner or a good flat-bed scanner with a transparency adapter, probably your best shot is to get -- or make -- an adapter to illuminate the slide and hold it in front of a good digital camera. That won't get you as high as resolution as the slide can deliver, and the same for the contrast, but still, the results might be plenty good enough to suit you. Isaac
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| From | "John Varela" <newlamps@verizon.net> |
|---|---|
| Date | 2012-04-02 17:45 +0000 |
| Message-ID | <51W5y0sPNk52-pn2-e0O37dpB4Uwq@localhost> |
| In reply to | #8831 |
On Mon, 2 Apr 2012 06:15:58 UTC, isw <isw@witzend.com> wrote: > Or ... there are things like this: > > http://www.abstractconcreteworks.com/essays/scanning/Backlighter.html > > but I don't think they do a really good job. Some years ago I had an HP flatbed scanner that came with a device like that. I managed to get some good results with it, with both 35mm and 110 slides. It was useless for negatives, however. Now I have an Epson scanner with a light in the lid. Much, much better, and it came with a set of frames for holding down various sizes of negatives, though not 110s sad to say. The only problem is the unit is a few years old now and the Epson software (which is quite good, by the way) has to run in Rosetta, which is why I'm reading this thread. And while we're talking about slides and negatives: Some of my slides and color negatives are over 50 years old. Kodachrome and Kodacolor have held up well. Ektachrome slides have faded badly; to the eye they look pink. The same is true of the few non-Kodak slides I have. (A few of the Ektachromes have blotchy green things on them; they look like mold or lichens or aliens or something.) With some effort I have been able to recover the color of many of them, but some I just had to convert to B&W. The moral of the story is: if you have old Ektachrome slides and you want to keep them, scan them right now before they get worse. -- John Varela
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| From | Erilar <drache@chibardun.netinvalid> |
|---|---|
| Date | 2012-04-03 19:55 +0000 |
| Message-ID | <jlfkkc$9d8$1@dont-email.me> |
| In reply to | #8838 |
"John Varela" <newlamps@verizon.net> wrote: > On Mon, 2 Apr 2012 06:15:58 UTC, isw <isw@witzend.com> wrote: > >> Or ... there are things like this: >> >> http://www.abstractconcreteworks.com/essays/scanning/Backlighter.html >> >> but I don't think they do a really good job. > > Some years ago I had an HP flatbed scanner that came with a device > like that. I managed to get some good results with it, with both > 35mm and 110 slides. It was useless for negatives, however. > > Now I have an Epson scanner with a light in the lid. Much, much > better, and it came with a set of frames for holding down various > sizes of negatives, though not 110s sad to say. The only problem is > the unit is a few years old now and the Epson software (which is > quite good, by the way) has to run in Rosetta, which is why I'm > reading this thread. > > And while we're talking about slides and negatives: Some of my > slides and color negatives are over 50 years old. Kodachrome and > Kodacolor have held up well. Ektachrome slides have faded badly; to > the eye they look pink. The same is true of the few non-Kodak slides > I have. (A few of the Ektachromes have blotchy green things on them; > they look like mold or lichens or aliens or something.) With some > effort I have been able to recover the color of many of them, but > some I just had to convert to B&W. The moral of the story is: if you > have old Ektachrome slides and you want to keep them, scan them > right now before they get worse. Most of the slides I'd like to scan are Fujichrome. Any experience with them? -- Erilar, biblioholic medievalist with iPad
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| From | Michael Siemon <mlsiemon@sonic.net> |
|---|---|
| Date | 2012-04-03 15:14 -0700 |
| Message-ID | <mlsiemon-2CC44A.15141303042012@c-61-68-245-199.per.connect.net.au> |
| In reply to | #8864 |
In article <jlfkkc$9d8$1@dont-email.me>, Erilar <drache@chibardun.netinvalid> wrote: > "John Varela" <newlamps@verizon.net> wrote: > > On Mon, 2 Apr 2012 06:15:58 UTC, isw <isw@witzend.com> wrote: > > > >> Or ... there are things like this: > >> > >> http://www.abstractconcreteworks.com/essays/scanning/Backlighter.html > >> > >> but I don't think they do a really good job. > > > > Some years ago I had an HP flatbed scanner that came with a device > > like that. I managed to get some good results with it, with both > > 35mm and 110 slides. It was useless for negatives, however. > > > > Now I have an Epson scanner with a light in the lid. Much, much > > better, and it came with a set of frames for holding down various > > sizes of negatives, though not 110s sad to say. The only problem is > > the unit is a few years old now and the Epson software (which is > > quite good, by the way) has to run in Rosetta, which is why I'm > > reading this thread. > > > > And while we're talking about slides and negatives: Some of my > > slides and color negatives are over 50 years old. Kodachrome and > > Kodacolor have held up well. Ektachrome slides have faded badly; to > > the eye they look pink. The same is true of the few non-Kodak slides > > I have. (A few of the Ektachromes have blotchy green things on them; > > they look like mold or lichens or aliens or something.) With some > > effort I have been able to recover the color of many of them, but > > some I just had to convert to B&W. The moral of the story is: if you > > have old Ektachrome slides and you want to keep them, scan them > > right now before they get worse. > > Most of the slides I'd like to scan are Fujichrome. Any experience with > them? My Fujichromes from 40+ years ago are awful. On the other hand, I thought they were pretty bad back then (I only used it when I couldn't get Kodachrome...) I have some Ektachromes, and many of them have faded; they recover reasonably well in VueScan, less well in the Epson software (I have one of the Epson scanners like John's, as well as my trusty Nikon Coolscan V.)
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| From | isw <isw@witzend.com> |
|---|---|
| Date | 2012-04-01 22:41 -0700 |
| Message-ID | <isw-12B23E.22412101042012@[216.168.3.50]> |
| In reply to | #8819 |
In article <9tr2avFibnU1@mid.individual.net>, Paul Förster <paul.foerster@gmx.net> wrote: > Hi Isaac, > > > Based on my experience scanning a few hundred 35mm slides, every > > transparency is its own thing, and you're not going to get a "one size > > fits all" set of parameters. > > ... I have scanned about 600 or 700 negative film strips now, each 4-5 > images. My experience is the same as yours, only, these strips are not > just 35 mm, but also old 60x60, 110 and other funny formats. Colors > even vary from image to image inside the same strip of film, no matter > if I lock the film base color or not. > > > Because of that extreme contrast ratio, I wound up having to set white > > and black levels individually for each slide, and I gave up totally on > > trying to add any sort of color or contrast correction into the mix. I > > used GIMP for all that. > > ... VueScan does that too, that's fine. > > > And a hint: do not include any of the slide mount in the active area of > > the scan. That is a "perfect black" which is not representative of any > > part of the actual image, and it will mess with the way the scanner > > handles the dark areas of the image. > > ... yes, I know. :-) > > > My scanner's slide holder can > > accommodate four slides, and I found it necessary to set the scan area > > individually for each slide, for each and every batch, in order to scan > > the maximum image area and none of the mount. This is due to the > > inherent lack of precision in the way the slides were positioned in the > > holder. The fact that different batches of slides came with different > > mounts (plastic, cardboard, ...) having slightly different outside > > dimensions and apertures did not help. > > ... I never use the plastic mounts. I put the negatives directly on the > scanner glas. The reason is that there is no way to put a rolled up > negative slide insode that darn mounting frame. Instead I put it on the > glas and put another layer of glas on top of that. I went to a good > glas manufacturer and had them make me a special white glass (mostly > light and color neutral) so I can flatten the negative at least a > little, increasing sharpness drastically because the slide gets > flattened. Of course, I have to accommodate for the extra glass by > moving the VueScan sliders a little (mostly brightness). My sense of it is that a scanner's depth of field is quite sufficient to deal with a modest amount of film warpage insofar as focus is concerned. My Microtek scanner's transparency holder could accommodate both positives (slides) and negatives, but because of the way the holder was built, the two were held at different distances from the imaging mechanism. I tried both positions, and could not see any difference in sharpness even at 4800 dpi. I suppose it's possible that your technique would reduce geometric distortion (by a very little bit), but I didn't notice it being a problem. Plus, every extra piece of glass means two more surfaces to cause reflections and collect dust ... Isaac
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| From | Paul Förster <paul.foerster@gmx.net> |
|---|---|
| Date | 2012-04-02 19:42 +0200 |
| Message-ID | <9tu6opFequU1@mid.individual.net> |
| In reply to | #8830 |
Hi Isaac, > My sense of it is that a scanner's depth of field is quite sufficient to > deal with a modest amount of film warpage insofar as focus is concerned. > My Microtek scanner's transparency holder could accommodate both > positives (slides) and negatives, but because of the way the holder was > built, the two were held at different distances from the imaging > mechanism. I tried both positions, and could not see any difference in > sharpness even at 4800 dpi. I suppose it's possible that your technique > would reduce geometric distortion (by a very little bit), but I didn't > notice it being a problem. Plus, every extra piece of glass means two > more surfaces to cause reflections and collect dust ... ... I found a huge gradient in sharpness changing with warpage. Putting an extra glass layer on top of any transparency, no matter whether negative or positive, improves the situation here a lot. But then, the warpage of my old negatives is really really bad. Imagine a third of a pipe. They're rounded up to that point, length-wise. So I don't just get steady sharpness thoughout the whole image but a huge geometry correction. -- cul8er Paul paul.foerster@gmx.net
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| From | Wes Groleau <Groleau+news@FreeShell.org> |
|---|---|
| Date | 2012-03-27 22:11 -0400 |
| Message-ID | <jkts16$nqn$1@dont-email.me> |
| In reply to | #8687 |
On 03-27-2012 08:31, Paul Förster wrote:
> Anyway, I have a long list of things I would wish VueScan had. It's not
> its image correction features, though there are some points as well,
> it's more user interface stuff, loads of small things that make using
> handling VueScan's interface by far less effective as it could be.
I do a lot of that. I put the SANE plug-in in the appropriate place
for GraphicConverter ($35) to find it.
From GraphicConverter, I invoke SANE. It has a preview, but it doesn't
work very well, and it isn't needed anyway.
Set the geometry to the entire bed, the resolution to 600 (first time,
since it remembers it)
the color to grayscale or color depending on the photos
Scan
When it completes, the image appears in GraphocConverter.
Rotate, resize, adjust color or contrast, blur, sharpen, whatever
as desired, and save.
The editing is usually much faster than the scan.
Sometimes for tiny pictures, I set resolution to 1200, put as many as I
can on the plate, and read a book while it scans. Then with
GraphicConverter, rectangle select, Cmd-C, Cmd-J cuts out a piece into
another window to edit and save.
--
Wes Groleau
"What progress we are making! In the Middle Ages, they would have
burnt me; nowadays they are content with burning my books.”
— Sigmund Freud, 1933
"He was never to know that even that was only an illusory progress,
that ten years later they would have burned his body as well.”
— Ernest Jones, 1953
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| From | dorayme <dorayme@optusnet.com.au> |
|---|---|
| Date | 2012-03-28 14:20 +1100 |
| Message-ID | <dorayme-99B490.14204928032012@news.albasani.net> |
| In reply to | #8707 |
In article <jkts16$nqn$1@dont-email.me>, Wes Groleau <Groleau+news@FreeShell.org> wrote: > Set the geometry to the entire bed, Yes, I used to do this and as you did, mess with the result later in image software/ I still have a beaut scanner that I ran on my QS and earlier under Classic or 9 proper, a ScanMaker with a big bed. Now when I need the odd scan, it is quicker for me to take a pic with a camera, than mess about with a scanner. btw, if you set up a lightbox arrangement and your camera is any good and you have a tripod, you can do a reasonable job on negs. -- dorayme
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| From | Wes Groleau <Groleau+news@FreeShell.org> |
|---|---|
| Date | 2012-03-28 20:56 -0400 |
| Message-ID | <jl0bvs$4dh$1@dont-email.me> |
| In reply to | #8709 |
On 03-27-2012 23:20, dorayme wrote:
> when I need the odd scan, it is quicker for me to take a pic with a
> camera, than mess about with a scanner.
I do that a lot, but for old photographs, the scanner is better.
--
Wes Groleau
Ostracism: A practice of sticking your head in the sand.
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| From | "John Varela" <newlamps@verizon.net> |
|---|---|
| Date | 2012-04-02 17:21 +0000 |
| Message-ID | <51W5y0sPNk52-pn2-do9c8SGB1TzQ@localhost> |
| In reply to | #8687 |
On Tue, 27 Mar 2012 12:31:08 UTC, Paul Förster <paul.foerster@gmx.net> wrote: > The story is this: I'm currently in the process of digitizing the whole > family image archive. That includes 110 format negatives, the most > crappy Polaroid instant photo shit, 60x60 negatives (two half-scans > necessary because of physical constraints of the lamp), 35 mm films > which are everything else than flat and all such stuff. Many negatives > date back to the 1960s and some are even older. You can imagine the > quality... I did the same thing a few years ago, and am now in the process of taking a final pass through all the slides before I throw them and the carrousels they rode in on into the trash. Among them are some hundreds of 110 slides. Scanning 110 slides at 3200 or more pixels per inch produces good results. I also have 110 negatives, which are a bitch to scan because of their wanting to curl up. If you have found a good way to make 110 negatives lie flat, please pass the method on. -- John Varela
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| From | Paul Förster <paul.foerster@gmx.net> |
|---|---|
| Date | 2012-04-02 19:50 +0200 |
| Message-ID | <9tu778FifcU1@mid.individual.net> |
| In reply to | #8834 |
Hi John, > I also have 110 negatives, which are a bitch to scan because of > their wanting to curl up. If you have found a good way to make 110 > negatives lie flat, please pass the method on. ... yes, I found a solution for me. My CanoScan 5600F is a flatbed scanner with transparency unit built into the top. So I went to my favorite glass cutter and had them cut me a strip of 40 mm wide by 200 mm long and 4 mm thick of white glass. Note, it's white glass! That is the official term. The normal glass you get is green glass. You can see the difference if you look inside the glass through one of its narrow edges. If its edge appears green, then you have green glass, which is way cheaper. If there is no greenish tone but all you see is what you would expect, i.e. glass, then that's white glass. It has to be white glass because that's the only glass that is a) affordable and b) more or less color neutral. That means, all you have to to is increase the scan's brightness by some 0.1% or so. And then, you have to practise putting the strips under the glass. THAT is the hard part with strong rolled up strips. -- cul8er Paul paul.foerster@gmx.net
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| From | "John Varela" <newlamps@verizon.net> |
|---|---|
| Date | 2012-04-04 02:11 +0000 |
| Message-ID | <51W5y0sPNk52-pn2-vZNBgQ5DrgU3@localhost> |
| In reply to | #8839 |
On Mon, 2 Apr 2012 17:50:32 UTC, Paul Förster <paul.foerster@gmx.net> wrote: > ... yes, I found a solution for me. My CanoScan 5600F is a flatbed > scanner with transparency unit built into the top. So I went to my > favorite glass cutter and had them cut me a strip of 40 mm wide by 200 > mm long and 4 mm thick of white glass. You have a favorite glass cutter? Where would I find a glass cutter? I'm sure the local hardware stores, if they have any glass at all, will have green window glass. Is Lexan or some other plastic colorless enough? -- John Varela
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| From | dorayme <dorayme@optusnet.com.au> |
|---|---|
| Date | 2012-04-04 13:37 +1000 |
| Message-ID | <dorayme-9FE3E4.13371004042012@news.albasani.net> |
| In reply to | #8877 |
In article <51W5y0sPNk52-pn2-vZNBgQ5DrgU3@localhost>, "John Varela" <newlamps@verizon.net> wrote: > On Mon, 2 Apr 2012 17:50:32 UTC, Paul Förster > <paul.foerster@gmx.net> wrote: > > > ... yes, I found a solution for me. My CanoScan 5600F is a flatbed > > scanner with transparency unit built into the top. So I went to my > > favorite glass cutter and had them cut me a strip of 40 mm wide by 200 > > mm long and 4 mm thick of white glass. > > You have a favorite glass cutter? > > Where would I find a glass cutter? I'm sure the local hardware > stores, if they have any glass at all, will have green window glass. > > Is Lexan or some other plastic colorless enough? You folk talking glass to keep negs flat? I had a 35mm enlarger where special glass (a spacer called something like "anti-Newton") touched the neg to flatten, a Leitz Focomat. But small area, for digital and flatbed use, you would need much bigger and it should be polished very smooth, and it needs to be high quality. This was before I settled for decades on a motorised Besseler, the neg holders were glassless superb metal sandwiches, the 4x5 you could grab the edges and pull a lever and it would stretch flat. I mention all this because I know how you all so clearly love me and want to know every little thing. -- dorayme
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| From | isw <isw@witzend.com> |
|---|---|
| Date | 2012-04-03 21:01 -0700 |
| Message-ID | <isw-17E2E2.21015203042012@[216.168.3.50]> |
| In reply to | #8878 |
In article <dorayme-9FE3E4.13371004042012@news.albasani.net>, dorayme <dorayme@optusnet.com.au> wrote: > In article <51W5y0sPNk52-pn2-vZNBgQ5DrgU3@localhost>, > "John Varela" <newlamps@verizon.net> wrote: > > > On Mon, 2 Apr 2012 17:50:32 UTC, Paul Förster > > <paul.foerster@gmx.net> wrote: > > > > > ... yes, I found a solution for me. My CanoScan 5600F is a flatbed > > > scanner with transparency unit built into the top. So I went to my > > > favorite glass cutter and had them cut me a strip of 40 mm wide by 200 > > > mm long and 4 mm thick of white glass. > > > > You have a favorite glass cutter? > > > > Where would I find a glass cutter? I'm sure the local hardware > > stores, if they have any glass at all, will have green window glass. > > > > Is Lexan or some other plastic colorless enough? > > You folk talking glass to keep negs flat? I had a 35mm enlarger where > special glass (a spacer called something like "anti-Newton") touched > the neg to flatten, a Leitz Focomat. What's needed to prevent Newton's rings is a piece of glass (or something) that is not perfectly flat, and/or not in direct contact with the film. The rings are an interference phenomenon that shows up when the spacing between two nearly parallel partial reflectors is very tiny (wavelength of light tiny). A thin piece of cellophane tape under one or two corners might be sufficient to prevent them. I would think that the very slight tint from "ordinary" glass (it's dissolved iron that gives it the green cast) would be easy to handle with any scanner's color correction or white balance controls. Anyhow, if the slide is more than a few years old, the colors may already have drifted further than that glass would move them ... Isaac
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| From | Paul Förster <paul.foerster@gmx.net> |
|---|---|
| Date | 2012-04-05 15:50 +0200 |
| Message-ID | <9u5m9nFv4fU1@mid.individual.net> |
| In reply to | #8879 |
Hi Isaac, On 2012-04-04 04:01:52 +0000, isw said: > What's needed to prevent Newton's rings is a piece of glass (or > something) that is not perfectly flat, and/or not in direct contact with > the film. ... speaking about Newton Rings (http://en.wikipedia.org/wiki/Newton%27s_rings), I have a number of images that I have not scanned myself but received that way which have those rings. Is there a way to remove them? -- cul8er Paul paul.foerster@gmx.net
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