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 Post subject: Old negatives
PostPosted: Thu Jan 24, 2008 3:07 pm 
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Joined: Wed Jan 16, 2008 12:24 pm
Posts: 646
Location: Stockholm, Sweden
Hi,
I have a buch of very old negatives. The negatives are probably 50-60 years old.

I would really like to capture these pictures digital to be able to see them in my computer and work with them.

One issue is that the sizes of these negatives is different from negative to negative, so i cant use a standard negative scanner.

So i was thinking of byuing a slimlight board and then mount my dSLR on a tripod above and then take the pictures and negate them.

The slimlight board im thinking of is this:
http://swefo.se/?productid=1590

I'll translate what it says:
Size: 16x15x15 cm
Luminated size: 10*13 cm
Light: 5000 K
Uses both AAA-batteries and AC-adapter.

Now, is this the way to go or is this method doomed to fail ?

Thanks
Khol

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 Post subject:
PostPosted: Thu Jan 24, 2008 3:53 pm 
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Joined: Sat Sep 30, 2006 4:30 pm
Posts: 9784
Location: UK
Hi Khol,

Other forum members are undoubtedly better qualified to advise on this specific task but one thing that does occur to me is that your 17-85mm lens has a maximum magnification of 0.2x which means that with an APS-C sensor measuring 22.2 x 14.8mm if your negatives are smaller than 111 x 74mm then you won't be capturing them at best resolution. Of course a macro lens should sort that issue out (or possibly a close-up lens or extension tube). With a 40D you should be able to use Live View, or even better remote Live View, to get the focus absolutely sharp.

By the way, are some of the negatives in colour? If not then you might save yourself some money by cobbling together a diffuse light source yourself as colour temperature won't be a concern. Even with colour negatives it might even be an option to mount the negatives on a piece of clear glass positioned vertically some few centimetres horizontally in front of an LCD monitor displaying a maximised Windows "Paint" window showing a large "pure white" image. With a big enough monitor you could even have the remote shooting utility simultaneously displayed at one edge of the screen. Wouldn't cost much to try it out and the money saved might even buy that macro lens. :idea:

Bob.

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 Post subject:
PostPosted: Thu Jan 24, 2008 6:04 pm 
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Joined: Wed Jan 16, 2008 12:24 pm
Posts: 646
Location: Stockholm, Sweden
Hi bob,
Thanks for your reply.

The science stuff you brought up here was new to me. Very good that you mentioned it. Will definitely have that i mind when I'm trying to capture the pictures. I guess it's a matter of trial and error until i get it right.

All negatives are monochrome, so the method you described is problaby the one to go for. The one with paint and my FTF-monitor.

I'm really really looking forward to see these pictures, because they are taken in the same willage where i was born, so it will be really cool to se them. I've seen that there is a few river-pictures, and they built a dam after the pictures was taken so it will be really really cool to se how it looked before.

Thanks for your input

Khol

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 Post subject:
PostPosted: Thu Jan 24, 2008 7:12 pm 
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Joined: Sun Nov 05, 2006 11:08 pm
Posts: 7896
Location: Germany
Khol, I started rescueing film-slides some time ago.
I needed/used my macro lens that can go to 1:1 magnification as everything else will lead to insufficient resolution and I used a flash as a bright constant daylight source. You need to be extra careful when flashing from behind as you need a good diffusor. Otherwise you'll have another form of vignetting: not by the lens but by the light-source :?
Take special care to wiĆ¼pe the slides/negatives clean of dust!!!

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