Use of X-ray film: technical discussion with example images

Excellent examples, towolf.

towolf....

I knew there had to be another great use for toilet paper! Shooting 11x14, I'll probably use some large 3M paper towels I have in the darkroom and soak 'em with bleach and try your method. Thanks for the images dancing back and forth as it is obvious the backing takes away such a large degree of apparent sharpness. It appears that a slight bump in exposure might make up for the removed backing, eh? Thanks for the post.

Thanks towolf!

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Originally Posted by Tav Walraven

towolf....

I knew there had to be another great use for toilet paper! Shooting 11x14, I'll probably use some large 3M paper towels I have in the darkroom and soak 'em with bleach and try your method.

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Just make sure you plop the sheet flat onto the bleach "pad" and carefully press it down. Doing that shouldn’t lead to bleach getting squeezed out, like out of a sponge. In that case you have too much bleach and it might get onto the front side, as has happened in the millwheel example above. Maybe I’ll shoot a quick video.

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Thanks for the images dancing back and forth as it is obvious the backing takes away such a large degree of apparent sharpness. It appears that a slight bump in exposure might make up for the removed backing, eh? Thanks for the post.

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For my film it’s definitely not a full stop. The triple example above shows the relative densities. It makes it lose 1/3 stop (for my old film at least).

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Just make sure you plop the sheet flat onto the bleach "pad" and carefully press it down.

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Yes, I imagine one must be very careful as there is no protection of the negative's front side.

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Originally Posted by HoodedOne

Ferrania wiil probably also make x-ray film in the near future.

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they seem to be more geared towards 35mm/120mm shooters

Here’s the quick video. I can imagine with formats larger than 4x5 it might need adjustments in the method.


http://www.youtube.com/watch?v=gnws-vaAD0U


n.b. I initially came up with this method to remove the backing on Fujiroids. I hated the taping and it would always leave black margins.

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Originally Posted by HoodedOne

Ferrania wiil probably also make x-ray film in the near future.

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That would seem strange to me. It's low margin, a likely faster shrinking market than regular film, and seems to be dominated by Kodak and Fuji and a few distributors. More likely they move into E6 sheet or C41 120/35 is my guess but first we need to support them on Kickstarter to get going at all!

Funny I Ike the black margins after taping :)

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Originally Posted by angusparker

That would seem strange to me. It's low margin, a likely faster shrinking market than regular film, and seems to be dominated by Kodak and Fuji and a few distributors. More likely they move into E6 sheet or C41 120/35 is my guess but first we need to support them on Kickstarter to get going at all!

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I believe it was the FPP Ferrania interview ( the links are on the Ferrania site). But, they mentioned, that they had received a request from CERN for x-ray film.