Comments on: Take a 6-month exposure photo

By: emperor

emperor — Wed, 30 Nov -0001 00:00:00 +0000

i recently started taking photos with an old camera that i modded to take 120 film
(http://rpi.edu/~kouttd/03/oldfilm.html) the images shown are scans from the film that are simply color inverted in software

By: zof

zof — Wed, 30 Nov -0001 00:00:00 +0000

looks like a surreal painting you would see in an art gallery, nice.

By: Cody Goddard

Cody Goddard — Wed, 30 Nov -0001 00:00:00 +0000

It is important to note that in the article he mentions using “Photo paper,” not photo film. Photographic paper typically has an ASA around 5-10, where these days you can’t buy film under ASA 50 without doing some searching.

If you have ever played with photographic paper outside a darkroom, you have probably noticed that it darkens from a creamy white to a dark purple when exposed to room light. This is a very slow process, effectively giving you an even less sensitive way to produce an image. This is what the author is scanning – the darkening of the paper caused by the image cast by the pinhole. I’m sure if you were to develop his image, the paper would go fully black.

By: James

James — Wed, 30 Nov -0001 00:00:00 +0000

Wouldn’t the light from the scanner ruin the paper, even if the ASA is so low?

By: Bergholt Johnson

Bergholt Johnson — Wed, 30 Nov -0001 00:00:00 +0000

@emperor: that’s just scanning negs, everyone does that. The post mentions scanning without developing.

@james: No, it takes a lot of light for a period of time to make photographic paper go purple. Even in sunlight it takes a while.