Re: X-ray Film example and comparison.
There is another way to hold the high lights while helping the shadows. After you have developed by inspection ( when you think it's done, pull it out of the tray and look through the back side at the safelight, when you start to see shadow detail from the back, it's done) put it in a water bath for 2 -3 minutes without agitation. This will stop development in the highlights, while letting the developer work longer on the shadows.
Quote:
Originally Posted by
Chauncey Walden
I'm finally getting closer to a normally printable neg. I had to go to tray development for the double sided after giving up on the Jobo. I couldn't get to a point with the Jobo where the back side would be developed evenly and even with the tray have to swap sides several times during development. I ended up at an EI of 64 to get full shadow detail and have been fighting the rapid contrast build up to stop it when the highlight details are there without blowing them out. Finally I resorted to a variation of Jim Galli's ortho-litho developer that pairs dilute Rodinal (1:200) with some restrainers (kind of like POTA) and used one of the Randy's mentioned superbright LEDs to check it. Not used to developing by inspection I let it go slightly too long and as a result it printed on grade 1 1/2. I just need to drop that time a couple of minutes to bring the contrast down a bit. With the single sided in the Jobo I am using dilute PMK (1:2:200) and I pulled the last test too soon and had to print on grade 4. I just need to add a few minutes to that one to bring the contrast up. If I were scanning the negs I could play games but I'm not.
Re: Images shot on X-ray film
got some snow yesterday here in North Georgia, decided to get out the pinhole camera, shot on 8x10 xray film
https://farm9.staticflickr.com/8628/...48d1a7eb42.jpgsnow by goldenimageworks65, on Flickr
Re: Images shot on X-ray film
Quote:
Originally Posted by
premortho
I develop by inspection under a LED red safelight. In trays. I use a water bath rinse. I prefer to develop at 65 degrees, rather than the 68 usually reccomended for pan films. I use Rodinal at 1 - 100. The water bath rinse allows the developer to work the shadows a little more, if you don't agitate the rinse. This is one of the oldest techniques in photography. My grand father started doing it this way in 1894, taught it to me in the 1940's, and I've used it ever since for ortho films, like X-ray film. I've tried other methods from time to time, but this is the easiest way to get good results. No mumbo-jumbo about trying to figure out development times, like you have to with pan films. Just use a light meter to get into the ballpark, remember to add one more stop of light per hour before and after 10.00 AM and 3.00 PM, and you will be very close to there.
thanks for that info. I will definitely keep that in mind - the extra stop and the developing temp and water bath.
cant wait to try my hand at the x-ray film. Should be fairly mild this weekend so maybe I will venture out and get some test shots.
Re: Images shot on X-ray film
Quote:
Originally Posted by
ImSoNegative
Very nice and a perfect usage of both pinhole and X-Ray. No need for excessive sharpness and so affordable.
Great image!
Re: Images shot on X-ray film
do you need to worry about reciprocity failure while using x-ray film? Dont recall anyone mentioning it before
Re: Images shot on X-ray film
Quote:
Originally Posted by
Derek Kennedy
do you need to worry about reciprocity failure while using x-ray film? Dont recall anyone mentioning it before
I have used xray film in my titan pinhole camera which is f288 for times up to 30 minutes or so with no failure at all
Re: Images shot on X-ray film
X-ray is no different than other films when it comes to reciprocity effects. I have talked about it and posted curves on the other xray thread. I always compensate for it.
Re: Images shot on X-ray film
thanks guys.
I'll search for your curves post
Re: Images shot on X-ray film
Re: Images shot on X-ray film
thanks Andrew - I was going from the last page (p93) and my eyes started to get blurry about page 73, but I did read a lot of great info while searching.
