kaiyen said:
Wait - is XTOL better than anything else, or are you saying that anything else is better than D76?
I really gotta try some XTOL.
Also - Stephanie - I don't see how taking some TXT out will help you figure out whether you have the right time for TMY.
allan
Let's see if it's easier with the wine.
1.) Rodinal, compared to D-76 straight, is about 1/2 stop slower in the lowest shadows. From the middle shadows and higher, the curves match, and Rodinal extends a straightline beyond the D76 shoulder.
2.) D-76, diluted 1:1, for clever photochemistry reasons, INCREASES the shadow speed by another half stop over straight D-76. It also is a bit sharper than D-76 straight. These are the reasons it has been the Photojournalists Soup of Preference for decades.
3. ) So far, either version of D76 pushes film better than Rodinal. With D76 1+1 you're a stop ahead already ! Developers like Acufine and Microphen are '50s era phenidone developers that, while similar to D76, because of phenidone's neat qualities, adds a third to half a stop over plain, and diluted, is a little faster than D76 1+1. But it lacks some of D-76's elegance ( in 35mm ) and has not been as widely loved. Loved well by some, but not by everybody.
4.) XTOL is a phenidone/ascorbate developer ( callinng mr gainer ! ) that finally beats D 76 in all respects ( OK, some folks don't like it with old tech films, but I do ! ) It is even more efficient than Microphen, and elegant like D-76. SO, 1+1, it gives more shadow speed than D-76, Microphen, or anything else. And it IS at its best with TMY.
5.) EI 1600 is ducksoup for XTOL 1+1 and TMY. Compared to Tri X (which I have loved well for years ) TMY has less granularity ( an objective quality ), higher resolution ( also objective ) and a higher MTF ( also objective ). The kicker, for me, is that pushed Tri X has a shoulder which tends to block high values. TMY does not. This simplifies both printing and scanning immensely. Check the Kodak publications to verify I'm not inventing this.
6. Kodak has published every conceivable time and speed for XTOL and every film.
Good, clear, objective qualities for XTOL when it comes to pushing film. Second best, D-76 1+1. And not bad at all.
My own darkroom has a vat of Rodinal, a tub of XTOL, and a vile cauldron of something JDEF cooked up. It really does amazing things developing TMY, but it's been raining frogs ever since I've started to use it.
d