Well, I have tried FX-39 with TMax 400 and Tri-X and it's mighty sharp. Gives very grainy negatives though, as expected. Can't both eat the cake and expect to keep it.
It gives basically full emulsion speed.
TFX-2 I haven't personally tried, but it's another alternative to consider for sharpness. Whether it works with rotary development or not, well there's only one good way to find out - try it. TFX-2 is available now, FX39 is not.
Stone- You really should take a course, or a workshop. You're not gonna get anywhere jumping around as you do, believing some of what you read, not believing other things you read. There's no substitute for learning from others more accomplished, experienced, and knowledgeable, in a hands-on manner. Claiming finances are the issue is just an excuse. The $300 you plunked down on 50 sheets of film would have gone a long way towards tuition. At some point, you'll need to decide whether you aspire to more, and make the sacrifices necessary to get there.
I understand, but it's still just an excuse. Everyone, here, who decided they wanted to hone this craft has made sacrifices to do so. Be it finances, jobs, relationships, housing, we've all made compromises in the pursuit of our photography. You just have to decide where your priorities lie...It's not the tuition it's the time commitment, I've taken classes before and failed out because I missed too many classes because I had to work....
It's not the tuition it's the time commitment, I've taken classes before and failed out because I missed too many classes because I had to work....
I understand, but it's still just an excuse. Everyone, here, who decided they wanted to hone this craft has made sacrifices to do so. Be it finances, jobs, relationships, housing, we've all made compromises in the pursuit of our photography. You just have to decide where your priorities lie...
I think, based on the amount of responses you get (to your posts) that most everyone wants you to succeed. I think most everyone sees your enthusiasm. You're constantly given good advice, by far more experienced people, which you reject. I also think it's why your threads drag on for pages (and often devolve into harshness)- people get frustrated by the circles your threads go in, usually morphing into an entirely different subject.
You need to decide what you want to accomplish, and then do what it takes to get there.
Personally, I'd like to see all the advice sink into Stone's brain, ...
The definitive answer to the "sharpest" developer might be better answered through a series of 'tests' of rolls of film of an identical scene (using the one tripod mounted camera/lens at the appropriate f-stop/shutter speed and then developing in a number of different developers..... then...... making prints of identical magnification with a POINT LIGHT SOURCE enlarger.
In my working days, my duties included printing negatives from exposures (to paper) with both scanning and transmission electron microscopes. A Durst 138S (and for those of you who may not be familiar with point-source light printing... the enlarger lens is ALWAYS used 'wide open' while 'brightness' is controlled by the voltage applied to the lamp).
When properly focussed... and using the proper exposure time/voltage to the lamp, the point-light source exposure might better provide for the viewer to observe the edge individual "grain-space" edge, which is probably the most accurate means of 'quick and dirty' determination of which film/developer combination will provide a more real, rather than subjective answer, to the 'sharpness' combination you seek.
Ken
You can lead a horse to water, but you cannot make it drink.
By the way the idea of controlling the light sources brightness always seemed to make the most sense and I never understood why this wasn't a more common way to create a photograph.
Stone, I don't think you're going to find what you're looking for in your materials, but rather in technique.
If you want that perceived nail sharp edge in dark/bright adjacencies on your negatives, also known as 'edge effects' you shouldn't be doing rotary processing.
You are far better off diluting your Rodinal and extend your developing time and agitation intervals. Rodinal is as good as anything with respect to creating edge effects.
Otherwise, the liquid developer I linked to a long time ago in this thread TFX-2 from Photographers' Formulary (not pyro, not powder, and sharp as hell) will probably be your best bet. That along with the new FX-39 that ADOX is shipping to Freestyle, a Geoffrey Crawley developer previously sold by Paterson as FX-39. They stopped and ADOX picked it up and are now making it.
Other than that, I sort of want to echo what many others here are urging you to do - shoot more and stop worrying so much about the chemistry and materials. I really hope you will. I've been through the whole developer and film stock rigamarole that you're currently going through years ago, and the worst part of that, besides not really learning anything about my chosen films and developers, is that when I print old negatives I have a very hard time due to how inconsistent the negatives are. That inconsistency is a definite side effect of being much too focused on the materials themselves. I get much farther when I simply focus on the photographs. Nobody walks up to my work when I show it and say, wow you must have used Tri-X and Rodinal for this photograph. No, instead they tell me that they are drawn to the subject matter or that the photograph is beautifully printed. At least for me there's a lesson in there that I hope we can all benefit from.
There are several reasons why one doesn't want to dim light bulbs in an enlarger: first, it's hard to get the same dynamic range that a lens offers you between F/4 and F/32. Second, if you dim a light bulb you change its temperature ---> its light spectrum ----> the balance between green and blue light ---> paper grade. Not good. Third, stopping down a lens one or two stops improves its sharpness in most cases, especially older designs. So no, you really don't want to dim an enlarger lamp, I have no idea why Durst ever did that, and the Durst Laborator 138 that I use on a weekly basis works with lenses that have variable apertures.
... the suggestion that a workshop will help you make sharper negatives.
This may be true for a few of his threads, but this one thread in particular seems to focus on one very specific issue that arises from the constraints he has to work under. The way I interpret his postings he has no intention of starting a full time career as photographic artist at the moment.Rather than do what's necessary to improve, he searches for silver bullets.
I do 40"x50" enlargements only for dev testing purposes, in fact I rarely go over 18x24cm with actual prints, but I positively see clear differences between 400 ISO films and different developers, even without scientific comparison tests like the ones you suggested. Given how most high acutance developers work, I am not surprised that Stone sees less sharpness with rotary processing. Now the first advice I would give anybody who complains about lack of sharpness would be "don't use a rotary processor for heaven's sake", but Stone made it quite clear that inversion tanks are not an option at the moment.Rudi, the entire discussion in this thread concerning edge effects has been a giant red herring concerning a non-issue. Rotary processing of sheet film is a false constraint from an image structure perspective, unless he's making 40"x50" prints.
True, but eventually you hope the horse gets thirsty enough to drink...
I do 40"x50" enlargements only for dev testing purposes, in fact I rarely go over 18x24cm with actual prints, but I positively see clear differences between 400 ISO films and different developers, even without scientific comparison tests like the ones you suggested. Given how most high acutance developers work, I am not surprised that Stone sees less sharpness with rotary processing. Now the first advice I would give anybody who complains about lack of sharpness would be "don't use a rotary processor for heaven's sake", but Stone made it quite clear that inversion tanks are not an option at the moment.
I had parents who ran interference with every ambition I ever developed as a kid towards the field of chemistry, to the point where I gave up pursuing this field professionally. I can fully understand the conditions under which Stone has to live right now, and given that his acting career didn't turn out all that great I suspect his parents treat his current photographic ambitions with a fair amount of hostility. Been there, done that, sans the foray into acting.
In my postings here in this thread I sketched out a path how he could improve the sharpness of his negs without rocking the boat too much at home. Let's see what he does ...
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