To me, they look equivalent. Yes, different color balance, but this depends
on white balance and film in use. Just either a bit more exposed the 18mm,
or some underexposure for the 28mm, depending on the details you look at.
Small difference in AOV, which could also be visible using two different
lenses of the same focal length on the same camera. Same perspective and
same everything, as it should be. Thanks Shel, this picture is worth a
thousand words.
Dario
----- Original Message -----
From: "Shel Belinkoff" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, July 21, 2005 2:17 PM
Subject: Theory of Equivalency
Last week we talked about whether or not an 18mm lens on a Pentax DSLR and
a 28mm lens on an SLR were equivalent. Saturday my friend and I tested
the
concept. Here are the results. You decide how close the two lenses are
to
being equivalent.
http://home.earthlink.net/~pdml-pics/2818.html
Shel
