Quote Originally Posted by litody View Post
delta 3200 is actually a low contrast film designed for pushing with a speed increasing developer resulting in normal contrast.
If you are using Microphen stock as per ilfords recommended dilutions with microphen, then shoot at 3200 and you will get a normal contrast index negative with ample shadow detail (an 8 stop range). However, D3200 and Microphen combination will be quite grainy which may or may not be what you want.
But you say you are using D76 and that is at least a stop slower than microphen with D3200.
Ilford work out ISO using ID11 (same as D76 near enough) so that speed of 1000 or 1250 will be about right with D76.
But if you must have the speed of 3200 or 6400 then microphen will be your best option, optimally at EI 3200.
Microphen isn't the only speed increasing developer available. I agree that something like it (phenidone, no?) will be better than D76, but it doesn't HAVE to be Microphen. I can tell you from experience that T-Max developer works beautifully, and I'd guess that Xtol would work well too, though I have no experience with it and this film.

Of course Ilford recommends their own developers.

Where this film really becomes superb, IMHO, is in 120. Now if I get around to shelling out the money for that 80mm 1.9 for my Mamiya...