[OM] Re: Focus problem

[Jeff Keller]

You also need to keep in mind that a very large print may need more DOF. The 
Zuikos that have the DOF scale seem to be good unless you really push how 
much you enlarge. The Mamiya 7 is notorious for how optimistic its DOF marks 
are.

If you're using a 2 touch zoom you can guesstimate settings if you have a 
similar focal length lens. Of course I usually carry a zoom to reduce the 
number of lenses. I guess I should print out some tables.
-jeff

----Original Message Follows----
From: "Ian Nichols" <ian.a.nichols@xxxxxxxxx>


On 27/08/06, Russ Butler <russ@xxxxxxxxxx> wrote:

 > No, I understand how to use the DOF marks on the lenses, but they are a
 > bit coarse & ambiguous (e.g. which part of the infinity symbol is
 > infinity?).

The bit that lines up with the central focus marker when the lens is
set to infinity?



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