Using PC-512 to develop x-ray, for Alt printing...
https://youtu.be/kFYH9mV5rCg?si=VB4L7rE67woO8YJ6
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Using PC-512 to develop x-ray, for Alt printing...
https://youtu.be/kFYH9mV5rCg?si=VB4L7rE67woO8YJ6
Test matrix: Fui HR-E vs UM-MA, Heliar 24cm vs Symmar-S 240mm. Surprised by minute differences.
https://www.largeformatphotography.i...3&d=1750671873
Attachment 260403Attachment 260404Attachment 260405Attachment 260406
- Can't find any info on Fu[j]i HR-E , could this be a typo, e.g; HR-U?Quote:
Originally Posted by towolf
- Which is which, 1,2 "Fui HR-E" 3,4 UM-MA correct?
- Some info on development, please
- Very nice tonality, could be regular film
- "minute differences": the last two have lower contrast, is that what we were supposed to notice?
HR-E exist. I have some, but not used so far. I also found no data sheets of it. In fact I never could get HR-U but HR-E seems to be pretty common where I buy, the German used market.
Thanks for your interest.Quote:
Originally Posted by Bernard_L
- The HR-E was bought some 10 years ago (for 31.50 EUR), and expired in 2016. And last week I bought a box of UM-MA to obtain the advantage of the single emulsion (expires end of July this year and I paid 44 EUR):
Attachment 260491
- 1 and 3 are UM-MA and 2 and 4 are HR-E. 1 and 2 are using the Schneider lens, and 3 and 4 are the old Voigtlaender lens.
- So, the cool thing about 18x24 film is, that I can slice it into 4 sheets of 9x12cm. And I have a lot of 9x12 gear. Lots of holders and a stainless steel development cage, that I can dunk into lock&lock tanks to develop. And for that, a developer that keeps longer is useful. Usually I use Rodinal, but I still had a pack of Agfa Refinal, that keeps longer when mixed. I should have diluted it more because these only took 3 minutes, with 2 minutes extra in the "stop bath" in plain water. This is too short for me.
- Also surprised by the tonality considering this is only by second try this time around after a 10 year hiatus.
- I think the reduced contrast could be due to 1. Some fogging or plaque or whatever on the lens elements of the Heliar, or 2. my manual shutter speeds were bad outdoors. I only have a Zettar shutter in front of the barrel lens, and need to actuate the shutter on B with the cable release. I think that was supposed to be 1/4s.
I expected a much larger difference between the two types of x-ray film. In the past I had odd blurry high-density blotches from the backside. But this time, it only seems like a slightly defocussed haze from behind. So, maybe the old film was not so bad after all. Or maybe I overexposed it last time.
Some pictures from last time: https://imgur.com/a/XeCEme7
Thank you for your detailed reply. I started experimenting after buying a box of 100 24x30cm Carestream MIN-R EV for a good price (4O€ maybe) but had not done my homework. Seems that this film has an especially high contrast, and more to the point, short dynamic range, among X-Ray films. I need to experiment a bit more before I give up on that and rush to buy another film. The price for fresh UM-MA is ~120€. Where did you buy yours?Quote:
Originally Posted by towolf
I'm afraid I got the last box from that supplier in Luxemburg. But they have Agfa HDR-C mammography film for 80 EUR, which I would've gotten otherwise.
Attachment 260517
Did you try reducing the development times, diluting more to achieve more compensating effect, with your current film?
It always hurts my heart when big formats are chopped down to lesser formats. I always think it is easier to buy tiny formats at the same time big formats become rare rapidly and it is true you can cut down, but you can not glue together. Ofcourse I do not wrote this to teach you what you have to do with your own property, just a simple observation of the type SCNR.Quote:
Originally Posted by towolf
Is this actually an image obtained with X-ray film? The scene contrast seems challenging already for conventional film.Quote:
Originally Posted by Corran
@Corran can you please provide details: film, development time? Any digital post-processing?
[I know this post is almost 3 years old...]