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Re: Dumb Pinter Question

Message-ID <64090ad7@news.ausics.net> (permalink)
From not@telling.you.invalid (Computer Nerd Kev)
Subject Re: Dumb Pinter Question
Newsgroups comp.os.linux.misc
References (17 earlier) <tu977l$r3m$1@reader2.panix.com> <64082685@news.ausics.net> <85ycnQZwKuzisJX5nZ2dnZfqn_adnZ2d@earthlink.com> <64085527@news.ausics.net> <tu9nom$fsgs$9@dont-email.me>
Date 2023-03-09 08:23 +1000
Organization Ausics - https://www.ausics.net

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The Natural Philosopher <tnp@invalid.invalid> wrote:
> On 08/03/2023 09:28, Computer Nerd Kev wrote:
>> Nonsense, I just checked the ancient digital camera that I've
>> used and it's only 3 Megapixels, and I'm happy with the results
>> from that.
> 
> As I said, there is a world of difference between a 60dpi happySnap and 
> a full blown process camera capable of generating a distortion free 1:1 
> image for photolithography on a metre by metre sheet of film.
> 
> I had a 2MP camera once, It was worse than 35mm 100 ASA slide film.
> 8MP is where a camera challenges good 35mm film and 24MP is where its 
> plain better.
> 
> But you need to go a LONG way to challenge 100ASA process film covering 
> a square metre/
> 
> I am scanning in WWII black and white negatives mostly shot on 100ASA 
> film. I need 600dpi to match the negative quality. 1200 is a waste of 
> time, 300 doesnt do them justice.
> 
> But frankly a page of text scanned at 150dpi is sill legible

Well the material was said to be notebooks, so I'm assuming it's
text and certainly not photographs. 150dpi is my default for
scanning text documents when there are few enough pages that using
a scanner is practical.

I know most people are more picky about quality than me, but I
think it's crazy to propose that a modern 10-20MP camera such
as the Canon Powershot models suggested for the DIY designs aren't
high enough resolution for copying notebooks. I can belive that
some people might argue for twice the resolution that I'm happy
with, but three times higher? Five times higher??? And then saying
that's _still_ not enough? Insanity.

Scanning photographic slides (some pre-WWII) is another topic, but
actually that is one I've struggled with more. Admittedly mainly due
to impatience again on my part, but trying to get equivalent
quality to a projected image is a real pain even with a backlit
scanner. There are dedicated professional film/slide scanners that
surely make it all much easier, but even second-hand ones have
four-figure price tags. I've mostly resigned myself to viewing them
all the old-fashioned way.

-- 
__          __
#_ < |\| |< _#

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Dumb Pinter Question pH <wNOSPAMp@gmail.org> - 2023-03-01 23:22 +0000
  Re: Dumb Pinter Question Rich <rich@example.invalid> - 2023-03-02 01:59 +0000
    Re: Dumb Pinter Question "28A.I873" <28A.I873@noabzba.net> - 2023-03-01 22:45 -0500
    Re: Dumb Pinter Question Joerg Lorenz <hugybear@gmx.ch> - 2023-03-02 07:04 +0100
      Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 09:58 +0000
    Re: Dumb Pinter Question Rob van der Putten <rob@sput.nl> - 2023-03-02 10:34 +0100
    Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 09:53 +0000
  Re: Dumb Pinter Question "28A.I873" <28A.I873@noabzba.net> - 2023-03-01 22:40 -0500
    Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-02 05:17 +0000
      Re: Dumb Pinter Question Michael Uplawski <michael.uplawski@uplawski.eu> - 2023-03-02 07:14 +0100
      Re: Dumb Pinter Question Michael Uplawski <michael.uplawski@uplawski.eu> - 2023-03-02 13:56 +0100
        Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-03 05:34 +0000
      Re: Dumb Pinter Question "28A.I873" <28A.I873@noabzba.net> - 2023-03-02 23:47 -0500
        Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-03 05:52 +0000
        Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-03 09:00 +0000
          Re: Dumb Pinter Question "28A.I873" <28A.I873@noabzba.net> - 2023-03-04 02:36 -0500
            Re: Dumb Pinter Question Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2023-03-04 10:33 +0000
              Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-04 10:42 +0000
                Re: Dumb Pinter Question Richard Kettlewell <invalid@invalid.invalid> - 2023-03-04 11:30 +0000
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-04 11:56 +0000
                Re: Dumb Pinter Question "Carlos E.R." <robin_listas@es.invalid> - 2023-03-04 13:57 +0100
              Re: Dumb Pinter Question "28B.I874" <28B.I874@noabzba.net> - 2023-03-04 20:58 -0500
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-05 08:16 +0000
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-05 13:32 +0000
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-06 08:36 +0000
                Re: Dumb Pinter Question Mike Scott <usenet.16@scottsonline.org.uk.invalid> - 2023-03-05 16:47 +0000
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-06 08:16 +0000
                Re: Dumb Pinter Question "28B.I874" <28B.I874@noabzba.net> - 2023-03-06 00:20 -0500
                Re: Dumb Pinter Question Computer Nerd Kev <not@telling.you.invalid> - 2023-03-06 16:03 +1000
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-06 08:44 +0000
                Re: Dumb Pinter Question "28B.I874" <28B.I874@noabzba.net> - 2023-03-06 08:46 -0500
                Re: Dumb Pinter Question "Carlos E.R." <robin_listas@es.invalid> - 2023-03-07 08:58 +0100
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-07 08:36 +0000
                Re: Dumb Pinter Question "Carlos E.R." <robin_listas@es.invalid> - 2023-03-07 11:39 +0100
                Re: Dumb Pinter Question not@telling.you.invalid (Computer Nerd Kev) - 2023-03-08 08:09 +1000
                Re: Dumb Pinter Question not@telling.you.invalid (Computer Nerd Kev) - 2023-03-08 08:13 +1000
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-08 05:42 +0000
                Re: Dumb Pinter Question Computer Nerd Kev <not@telling.you.invalid> - 2023-03-08 16:09 +1000
                Re: Dumb Pinter Question "28B.I874" <28B.I874@noabzba.net> - 2023-03-08 01:38 -0500
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-08 08:25 +0000
                Re: Dumb Pinter Question Computer Nerd Kev <not@telling.you.invalid> - 2023-03-08 19:28 +1000
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-08 10:24 +0000
                Re: Dumb Pinter Question not@telling.you.invalid (Computer Nerd Kev) - 2023-03-09 08:23 +1000
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-09 10:02 +0000
                Re: Dumb Pinter Question not@telling.you.invalid (Computer Nerd Kev) - 2023-03-10 08:16 +1000
                Re: Dumb Pinter Question "28C.I874" <28C.I874@noabgba.net> - 2023-03-09 20:46 -0500
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-10 11:25 +0000
                Re: Dumb Pinter Question Rich <rich@example.invalid> - 2023-03-08 15:02 +0000
                Re: Dumb Pinter Question not@telling.you.invalid (Computer Nerd Kev) - 2023-03-07 07:45 +1000
                Re: Dumb Pinter Question "28B.I874" <28B.I874@noabzba.net> - 2023-03-06 20:20 -0500
                Re: Dumb Pinter Question pH <wNOSPAMp@gmail.org> - 2023-03-07 02:11 +0000
                Re: Dumb Pinter Question "28B.I874" <28B.I874@noabzba.net> - 2023-03-07 00:54 -0500
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-07 10:45 +0000
                Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-07 10:31 +0000
                Re: Dumb Pinter Question John Forkosh <forkosh@panix.com> - 2023-03-06 08:30 +0000
            Re: Dumb Pinter Question Dan Espen <dan1espen@gmail.com> - 2023-03-04 18:46 -0500
    Re: Dumb Pinter Question Rob van der Putten <rob@sput.nl> - 2023-03-02 10:44 +0100
      Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 09:56 +0000
    Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 09:55 +0000
  Re: Dumb Pinter Question Joerg Lorenz <hugybear@gmx.ch> - 2023-03-02 07:04 +0100
    Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 09:57 +0000
      Re: Dumb Pinter Question Andreas Kohlbach <ank@spamfence.net> - 2023-03-02 21:50 -0500
        Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-03 09:03 +0000
  Re: Dumb Pinter Question Computer Nerd Kev <not@telling.you.invalid> - 2023-03-02 16:44 +1000
    Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 10:00 +0000
  Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-02 09:50 +0000
    Re: Dumb Pinter Question Andreas Kohlbach <ank@spamfence.net> - 2023-03-02 21:56 -0500
      Re: Dumb Pinter Question Bobbie Sellers <bliss@mouse-potato.com> - 2023-03-02 22:14 -0800
      Re: Dumb Pinter Question The Natural Philosopher <tnp@invalid.invalid> - 2023-03-03 09:08 +0000
  Re: Dumb Pinter Question "Carlos E.R." <robin_listas@es.invalid> - 2023-03-02 14:44 +0100
    Re: Dumb Pinter Question pH <wNOSPAMp@gmail.org> - 2023-03-02 17:52 +0000

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