ChrisP
Grain Lover
While looking at the good old massive dev chart I got to wondering. Can I learn anything about film and dev speeds from this? So my two questions are:
1. If a film has shorter developement times does that mean its faster than a different film in the same developer (by faster I mean more shadow detail).
e.g. hp5+ in d-76 1:1 at 1600 takes 18 minutes. tri-x in d-76 1:1 only takes 13 and a a quarter minutes. Can I assume that tri-x is faster than hp5+ because of this? Or is there something else at play here? (note that I just checked and dev time for tri-x is shorter than hp5+ in d-76 at 400 too, I just have the 1600 speed times memorized already).
2. Can I do the same thing with developers? Hp5+ in d-76 1:1 @1600 is 18 minutes, while in DD-X 1:4 its only around 10. Does the shorter time=more shadow detail? If this is so than do stock solutions=more detail? When I think about this one I kind of doubt this is the way it works because you can stand develope for like an hour or two to try and pull out more shadow detail.
But could I make some basic comparrisons? X-tol and microphen are both speed increasing, but hp5+ @ 3200 in microphen stock is shorter than x-tol stock. Does that mean anything?
Thanks,
Chris
1. If a film has shorter developement times does that mean its faster than a different film in the same developer (by faster I mean more shadow detail).
e.g. hp5+ in d-76 1:1 at 1600 takes 18 minutes. tri-x in d-76 1:1 only takes 13 and a a quarter minutes. Can I assume that tri-x is faster than hp5+ because of this? Or is there something else at play here? (note that I just checked and dev time for tri-x is shorter than hp5+ in d-76 at 400 too, I just have the 1600 speed times memorized already).
2. Can I do the same thing with developers? Hp5+ in d-76 1:1 @1600 is 18 minutes, while in DD-X 1:4 its only around 10. Does the shorter time=more shadow detail? If this is so than do stock solutions=more detail? When I think about this one I kind of doubt this is the way it works because you can stand develope for like an hour or two to try and pull out more shadow detail.
But could I make some basic comparrisons? X-tol and microphen are both speed increasing, but hp5+ @ 3200 in microphen stock is shorter than x-tol stock. Does that mean anything?
Thanks,
Chris
