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

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Originally Posted by andrewch59

Randy I had the same problem, but put it down to me and my robust technique at the time, as the test was to see if I could avoid scratches and mottling. I kinda gathered I could remove those same marks by using a circular motion instead of just the lapping back and forth I did for the test. I guess part of the aim is to cut down on developer soup as well, I only used 275ml of soup for that, which equated to 2ml (how good is that!) of developer. With that little mix it expires pretty quickly and I wanted the spent developer to be washed away pretty quickly, which the frame achieves.

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After pondering for a while, I noticed the hinged side of the holder which folds over to secure the negative, has no holes in it. This of course forces the developer to be more active as it laps back off this solid surface. I cut slits in the metal to allow the soup to flow through. No more dark developer marks.

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Originally Posted by koraks

Dirk, that's an excellent result - and to know that this is an initial attempt, that's really impressive! How did you agitate?

Andrew, how much developer solution do you use and how large is your tray for 8x10? I currently use 200ml in a 11x15" tray, which seems to be just about the minimum. I'm quite curious how you manage to get even development with intermittent agitation!

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For stand/semi-stand, I don't use trays. Instead, I use hanger and tank. Standard development is in trays. 500ml of working solution (Pyrocat-HD) in a flat-bottomed, 8x10 tray. Agitation is one tray lift, north/south, east/west, every 30 seconds. I have also extended this to every minute.

Not a big fan of Kodak Ektalure B/RA, but it seems to work okay here. It was mainly an experiment to see how well it would handle semi-stand development. Scan.

https://c1.staticflickr.com/3/2561/3...9df1bd50_b.jpgCoquitlam River by Andrew O'Neill, on Flickr

Love the quietness in this image, Andrew. After playing with it a bit, I realized that I prefer to view it at 5x8 from the bottom. Yeah, good thing we all are not driving a Pinto, eh ?

Les

My friend had a Pinto in high school in '78. I stopped riding in it when I heard about it being a bomb on 4 wheels.

Love it Andrew, quiet solitude.

Great picture, Luke. How do you process?

Thank you guys ,

it was processed in a big tube , with rodinal 1:150 , constant rotation , 6 min , 20*

I just shot my first X-rays this weekend and the negatives came out very dense and hard to scan.
The details looks properly exposed, mayby something went wrong when I developed them?

I used CEA green X-ray film and tray developed in 1:100 R09 for 12 minutes.
Any advice?

That development regime will yield quite dense negatives. They should be about right for Van Dyke.