Hi Joe,
I'm quite optimistic about the Pentax 645 lenses regarding digital.
I have very little evidence to substantiate my opinion, but some
randomly obtained shots with the *istD suggests that they're not much
worse than their K-mount counterparts with corresponding AOV.
Of course, how they will perform with a larger area chip may be a
different story all together, but as I said, I'm optimistic.
Jostein
----- Original Message -----
From: "jtainter" <[EMAIL PROTECTED]>
To: <pentax-discuss@pdml.net>
Sent: Friday, February 10, 2006 8:27 PM
Subject: Lenses for 645D?
Here's something I am idly thinking about. I have not used medium
format, except for a very old Rolleicord TLR that I bought used in
1967 and last used in 1991.
By reputation, the very best 35 mm. lenses are said to be sharper
than corresponding medium format lenses because they have to be
(i.e., to get good image quality in the smaller negative). For the
reason given in the first paragraph, I don't know this personally.
It is just something I have read.
But if MF lenses are less sharp than 35 mm. lenses, I wonder if
existing MF lenses will be good enough for a digital sensor? As we
know, some lenses that do well (or okay) in 35 mm. do not perform so
well on APS-C. Will 645D buyers need new lenses?
Any thoughts?
Joe
