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

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Originally Posted by towolf

I don’t think so, we designed the 2x2 experiment specifically to test film-vs-film and time-vs-time
http://i.imgur.com/LNJCxjs.png

It’s this one here. According to manufacturer it’s 5600 K.

Right now it must be compensated by roughly 1.5 stops. I can’t really believe it’s spectral. Why is everyone discounting the reciprocity failure theory?

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Still related to this question, why flash does not register on x-ray film as much as the light meter would indicate (i.e., 1.5 stops less than metered).

Some said, it would be a spectral issue. I finally got a chance to take a color picture and it’s clearly visible that the flash on the right of the camera is "hotter" than the continuous light on the left side. With "hotter" meaning: more Kelvin.

http://i.imgur.com/22ulGUu.png

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Originally Posted by Corran

To be honest I don't really know what you are trying to say.

My point was that telling those of us who post negative scans of LF negatives should post in the digital images section is a slap in the face, rude, and exceedingly short-sighted, and quite simply wrong.

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Thanks Michael E, you got it!

8x10, Kodak X-ray Green, 12 min rotary R09 1:125

https://farm1.staticflickr.com/690/2...764050bc_b.jpgTender moments by Sergei Rodionov, on Flickr

That's very nice, SergeiR. You must be stripping the backside emulsion?

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Originally Posted by Andrew O'Neill

That's very nice, SergeiR. You must be stripping the backside emulsion?

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Thank you, Andrew.

I tried it once about 2 years ago, and never would do so again, unless i don't have choice. I know people do so with great results, me - not so much. Stripping requires much more care and patience than i have ;)

Speed Graphic 4x5, with Optar 135mm.
Agfa CP G+ film.
Developed in Ilford MG 1+80 at 22C for 8min.
Scan from negative, finished in PS.
https://farm6.staticflickr.com/5811/...abcdb996_b.jpg

Thodoris, what a wonderful portrait.

SergeiR, what rotary system are you using? I ask because I can't see how systems such as BTZS tubes or Jobo would allow development to the backside of the film.

Great minds think alike. I was wondering the same thing.

I didn't read all the back and forth on the last ten pages. I was looking for photos....