X ray film experimentation

[HT Finley]

There are other posts and threads concerning the use of green X-ray film (Fuji HRT, in my case). I've read them, here and elsewhere. Largely the problem is getting proper shadow detail. There are Rodinal fans, Pyro fans, and so on. Has anybody considered or tested with pre-flashing? Any results to report? Thank you.

[Andrew O'Neill]

Yes, I have tried it with green latitude. I found that pre-flash up to zone I ample. Going heavier than that results in a flatter negative that will not print well in carbon (which I do), or other alt processes... silver gelatin, no worries.
I always pre-flash in-camera, with a translucent plexi-glass disc mounted on the lens.

On another note, I get pretty good shadow detail without pre-flashing. Are you often working with long exposures? This film has pretty bad reciprocity characteristics.

[HT Finley]

So far my exposures center around 1/5 second with a yellow filter at about f/32 for daylight scenes for an ASA with filter of about 16 Without filter about ASA 25.
I'm afraid I don't understand your flashing procedure. Thank you for answering. BTW I will be doing ordinary silver based printing and Dektol 1:2--standard darkroom contact printing.

[HoodedOne]

Why ASA 25 ?
Fuji HR-T is a "high speed" x-ray film. And Fuji rates it from ASA 120 - 800 (depending on the screen they use)
Most people that I asked rate it as ASA 100. I like the results I'm getting at ASA 200.

http://farm6.staticflickr.com/5496/9615583991_126efa44b3.jpg (http://www.flickr.com/photos/hoodedone-photos/9615583991/)
2013-HRT-005.jpg (http://www.flickr.com/photos/hoodedone-photos/9615583991/) by HoodedOne (http://www.flickr.com/people/hoodedone-photos/), on Flickr

[HT Finley]

Why ASA 25 ?
Fuji HR-T is a "high speed" x-ray film. And Fuji rates it from ASA 120 - 800 (depending on the screen they use)
Most people that I asked rate it as ASA 100. I like the results I'm getting at ASA 200.



Frankly, that's what I like to know--why my film speeds on this stuff are so much lower that everybody else. It's fresh film I bought in a sealed package on ebay. Can't explain it. But if I were to expose at the 80 and 100 speeds and develop it to suit, all I'd have was high contrast film with no shadow tones at all.

[Andrew O'Neill]

I metre through the plexi, then place it in a filter holder in front of the lens. I place the metred exposure on zone I.

[HT Finley]

Why ASA 25 ?
Fuji HR-T is a "high speed" x-ray film. And Fuji rates it from ASA 120 - 800 (depending on the screen they use)
Most people that I asked rate it as ASA 100. I like the results I'm getting at ASA 200.

http://farm6.staticflickr.com/5496/9615583991_126efa44b3.jpg (http://www.flickr.com/photos/hoodedone-photos/9615583991/)
2013-HRT-005.jpg (http://www.flickr.com/photos/hoodedone-photos/9615583991/) by HoodedOne (http://www.flickr.com/people/hoodedone-photos/), on Flickr

What developer formulation and procedure did you use?

[HoodedOne]

I develop in a Paterson Orbital with R09 (Rodinal) 1+100 (120 ml) with constant agitation for 6 minutes @ 20C