Trius
Waiting on Maitani
Any good work-around for HC110 users (other than "pick a different developer")?
Massive Dev gives 16 minutes @ 20C, Dil B as a starting point.
Any good work-around for HC110 users (other than "pick a different developer")?
Jerome,
With the Diafine times above and at 1000-1250 ISO I actually get mids and a compensating effect.
Microphen would be my second choice. Recently I have been using Microphen as my normal developer. I wanted a high energy developer, but realize that I also minimized agitation for midrange, IQ and a compensating effect. To get full development I had to extend times.
Of course this was to make negatives that have added density for wet printing. You ask a very good question.
Cal
I take your word on Diafine and I wish I could use it to test 1600 again, the only thing preventing me from using it on a regular basis is the unavailability in Canada
I'm going to B&H later today. If you want I can buy you the kit to make a gallon of part "A" and a gallon of part "B." Even if you use a 2 liter stainless steel tank like I do there are small loses due to pouring and wetting the film.
Finally found the article about pushing Tri-X to 3200 and beyond. It's a pdf posted by Emir Shabashvili and still available if you google his name and pushing Tri-X. He tried six different developer combinations and posted results as well as formulae. A very extensive test. He found the easiest way was to use Diafine twice. Google this and check it. Good advice, clearly written.
Finally found the article about pushing Tri-X to 3200 and beyond. It's a pdf posted by Emir Shabashvili and still available if you google his name and pushing Tri-X. He tried six different developer combinations and posted results as well as formulae. A very extensive test. He found the easiest way was to use Diafine twice. Google this and check it. Good advice, clearly written.
Thanks. I'll give that a read. I'm running a few tests at 1600, 3200, and 6400 for Tri-X and HP5.
Also know that Acros 5 1/2+ 5 1/2 with two inversions at 100 ISO is practically grainless. Also know that for bulb exposures using a tripod for night shooting that Acros does not have any reciprocy failure. This combination is magic for night shooting. IQ is mucho high and I can print big/huge.
If you are doing everything right basically it is a bit like HDR but you are shooting film. The highlights get limited development like in stand development. When in doubt overexpose with no worry of blown highlights.
Cal
Finally found the article about pushing Tri-X to 3200 and beyond. It's a pdf posted by Emir Shabashvili and still available if you google his name and pushing Tri-X. He tried six different developer combinations and posted results as well as formulae. A very extensive test. He found the easiest way was to use Diafine twice. Google this and check it. Good advice, clearly written.
Cal,
Could you clarify the dilutions and times and temps you are using with Acros 100 MF and Diafine to yield the results mentioned. I also wasn't quite clear if you were using a yellow filter to bring out the mids with the Acros or that just applied to your Tri X comments. An example would be great, but I'd be happy with just the processing formula you are using.
I use a lot of Acros, and always looking to refine it a little more.
Thanks for any suggestions you might be able to offer.
Larry,
Diafine is "Panthermic," meaning as long as the temperature is above a threshold that temperature has no effect on development. Depending on what you read that threshold is 68 degrees F (old directions) or 70 now in the new Diafine directions. Basically if your temperature is 68-70 degrees F or more don't worry.
Also realize that Diafine is not a solvent developer, so new thinking is required. Also Diafine is a two part developer (Part "A"/ Part "B"). Here's the concept: you soak your Acros in Part "A" for 5 minutes and then empty the Part "A" to be used again. Very little or almost no development takes place during these first 5 minutes, and development really begins when you place Part "B" in the tank. Basically developer soakes into the emulsion for the first 5 minutes and then that developer gets activated by Part "B." Save part "B" to also reuse again.
A lot happens because the way I use Diafine is not following the directions or recomended film speeds. The highlights only develope untill the Part "A" is exhausted, and in a way the highlights get a stand development treatment.
Diafine is also at the same time a very active developer so another different result is added shadow detail. So you get a negative that basically is hard or difficult to blow the highlights and at the same time you get additional shadow details like a larger format if you follow the stock Diafine instructions, but here is the "Calzone" twist: I underdevelope for lower contrast for a vast midrage and lower contrast. Basically I get low contrast negative when compared to a pushed negative, but I get a full range of tone in a negative that is really easy to print.
I underdevelop via reduced agitation which has a secondary benefit of smaller grain. I only do two gentle inversions instead of the recommended three. I extend the time slightly to 5 1/2+ 5 1/2, and I'm shooting Acros at box speed (100 ISO).
I only use a 2X yellow filter with Tri-X because if you don't have a high contrast condition you likely will get mucho flat negatives. You have to understand that Diafine is a two part compensating developer that is purposely designed to unwind contrast and still have fine grain. With Tri-X I shoot at 800 ISO but effectively it is 400 ISO due to filter factor from the 2X yellow.
BTW you can think of my way of using Diafine as analog HDR, but with a single exposure. For me it is a "Slacker's Brew." Also know that Diafine gets better through use after say 25-30 rolls (more mids, smoother tonality). Realize I don't mind loosing the push or film speed. Basically I'm using a compensating developer for the compensating effect and stand development of highlights for extended detail and tonal range.
Cal
Cal:
I have used you method for both Trix and Across for quite sometime now, as you have outlined in this forum for few years now, and It Sure Works! I do wet printing and I don't like to post, as what I do is for myself, and my abilities as a photographer leave to be desired. I just want to thank you for your time spent testing and sharing your experience with us. I appreciate it.
Giorgio
Cal,
Many thanks. I will give it a go, this gives me a very useful starting point. It's an effect I try to get with Acros. Will see if this takes me where I want to go.
Thank you very much, I appreciate it.
Larry