matt nalley
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- Joined
- Feb 19, 2011
- Messages
- 43
- Format
- 35mm
I developed it in the Rodinal 1+300 for 12 minutes as recommended on that ATP review article, I only agitated every 2 minutes though... I got damn bleeding halos around dark/light edge transitions, contrast is still too high.
250ml wont cover the film in a patterson. 1+11.5 = 12.5 parts.
300/12.5 = 24mL, so 276mL water, 24mL concentrate for 300mL of developing solution.
I would definately expose it slower than 32, by a few stops and shorten development, or dilute the developer more, contrast is a bit too much - though I haven't used ATP DC with it.
Matt, besides the the short time of 6 min, it might be inaccurate temperature.
I usually let it stay for 8 min @ 20° C.
Yes, 8 minutes is how I do it. I am also working only with distilled water.georg16nik, I was very careful to bring the temp down to 20C. I checked the spent developer and it only rose to 20.5C during the 6 minutes it worked on the film. My fix was also in the 20-21C range, as was my final rinse. I used distilled water at every stage. To bring temps down I added ice cubes, so those may have added minimal tap water contamination.
Your 8 minute time is with the normal 1+11.5 dilution using ATP DC?
After trying both Rollei Pan 25 and ATP 1.1 I must say I like Pan 25 better so far. My first try of ATP 1.1 in Rodinal showed okay results in low contrast scenes, but way to much contrast in contrasty scenes.
Matt, no increase in grain.
Matt, about the Moon shot. What lens?
After trying both Rollei Pan 25 and ATP 1.1 I must say I like Pan 25 better so far. My first try of ATP 1.1 in Rodinal showed okay results in low contrast scenes, but way to much contrast in contrasty scenes.
Formulary TD-3 works very well with ATP. It's more economical than the dedicated ATP-DC developer, and can be used with a wide range of dilutions and EI's to vary the contrast.
I'd also suggest TD-3. It tends to produce a little more contrast in the low values than typical POTA-type developers (which most if not all these dedicated developers are), and you need every bit of low value separation you can get with document films since you have to place shadows very low on the scale in you want any kind of exposure range at all. You also get better speed, a longer scale, and it is far easier to get uniform development, which is a real problem with the POTA-type phenidone based developers typically dedicated to these films.
Athiril, I hadn't considered trying Rodinal (yet). One of the main reasons I decided to try ATP is that review article you mentioned, yet somehow I forgot about it once I shot my first roll. After reading through it again I'm tempted to use Rodinal 1+300, but I'm also reluctant to introduce too many variables in my first attempts with a new film. My subject is only available for a few days each month so I hate to "waste" too many rolls with lots of experimentation. It takes a lot of patience to wait for my next opportunity to shoot when I don't get any printable negatives.
georg16nik, I might try the same method with 1+13.5 again but 8-10 minutes. Do you notice any increase in grain vs 6 minutes? I know it's extremely fine grain, and I want to maximize that benefit because the goal is a 16x20 or possibly larger print from 35mm.
Here's a question for both of you. In the review (link) one point they make is that ATP might blow highlights more than TP. I'm shooting the moon. Overexposure is very easy, which is another reason I bracket over a wide range. Is there anything I can do in development to minimize blown highlights without sacrificing too much contrast, or worse risk underdevelopment of the whole roll? Generally the goal is always a balance, but (I think) very high contrast is welcome for this particular shot as long as its not at the cost of extremely fine grain/details that would limit enlargement.
Matt, how long exposures were the last ones?In that case I think I'll push it to 10 minutes in the 1+13.5 dilution for the 2nd roll.....
Telescope. 2000mm effective focal length, fixed at f/10. I've also been using a #12 yellow filter. That probably takes away 1/3 (?) stop. My early attempts were very low contrast, probably due to film choice, so I added the filter and got so used to it I forget it's there (despite seeing a yellow moon in my viewfinder). I didn't even think that it may be unnecessary with ATP until now. Is there any chance the filter in combination with ATP is a bigger problem than my development method in terms of reducing EI? It certainly didn't have more than the expected 1/3-1/2 stop impact on films I've used before (mostly Delta 100, FP4, Pan F).
Matt, how long exposures were the last ones?
ATP might run into some reciprocity failure above 1 second, so it might need an extra 1/3 stop (or more) to compensate for that..
Thanks for the tips, Athiril. By halo I assume you mean an undesirable exaggeration of the sharp edge effect Rodinal can produce, particularly with stand development, which is why you advise more frequent agitation. Correct?
Good examples , the picket fence as it gets further away, by the two windows, really shows the undesired effect.I mean something you'd see on a bad HDR,
Here is an altered contrast example;
It will be interesting to see some astro shots on ATP!
That film gives a lot of room, to play with filters etc etc.
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