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

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Originally Posted by HT Finley

OK, I've finally got my 8x10 up and running. I've done some film speed and development experiments on Fuji HR-T green film and D-76 1:3 6 minutes at about 70-72 degrees and I am getting much slower film speeds that what I was expecting from reading this forum. I had expected a speed of 80 maybe. Or 50. But what I'm getting here is more like a speed of 25 with no filter and ASA 12 or maybe 16 with a K2 yellow filter. I'm perplexed at why I'm not getting the much higher speeds these other guys are. One thing is for sure--this film is tough to get shadow detail with, but I'm doing what I have to to get some. And the speeds I just reported are where I seem to need to be to get that. Any comments? Thanks.

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I shoot my film at 80 in subdued light and expose shadows at zone III. I develop in D-76 1:1 for 4-6 minutes and have no problem getting shadow detail. Reciprocity? I have found that if I double my exposure I'm close. Develop with the red safelight on and you should be able to "see" what is going on. A couple of tests in the light that you like to shoot in and you should be good to go. In bright sun I rate it at ISO 160! This is for the half speed blue.

It would be totally impossible for me to get the kinds of speeds out of this box of film that you guys are reporting. No way. This is very strange.

What would you Rodinal fanboys (of which I am not one) think of D-23?

What's wrong with Rodinal? I think it's the best and most versatile developer there is, for LF film. I have never used D-23.

Check out Sergei's test a few pages back. He gets better shadow detail with Rodinal than Pyrocat, another popular choice.

How are you metering? Are you stripping or no? I've found that the x-ray film (HR-T) is a little thinner than I'm used to seeing, when I've got a good exposure.

I'm pretty new to the X-ray world, but I have been using paRodinal 1+50 for the last week - I'm very happy with the results:

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I've been shooting Fuji HRT 8x10 at ISO 100 under strobes.

printed 2 more today
Hindmarsh falls 2
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architectural shot
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both shots with a Kodak2D 270mm G-claron

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Originally Posted by HT Finley

What would you Rodinal fanboys (of which I am not one) think of D-23?

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that attitude, right there. Sorry.

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Originally Posted by Mkillmer

I'm pretty new to the X-ray world, but I have been using paRodinal 1+50 for the last week - I'm very happy with the results:

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aye, getting pretty good results, indeed.

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Originally Posted by SergeiR

aye, getting pretty good results, indeed.

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Hi Sergei,
Thanks for the kind words, your fantastic pictures have really inspired me to shoot better.
I noticed you mention that you rotary process them. Does that mean you strip them?
Mark

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Originally Posted by Mkillmer

Hi Sergei,
Thanks for the kind words, your fantastic pictures have really inspired me to shoot better.
I noticed you mention that you rotary process them. Does that mean you strip them?
Mark

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No, i dont do stripping unless i REALLY have to (i.e film got scratch and i intend it for contact print directly without paper neg). My negs are evenly developed on both sides :P