On Wed, 21 Sep 2005, Jim King wrote:
Here are two shots (full size) of the proverbial brick wall, one at f5.6 (one
stop down to give the lens a little slack) and one at f11. The one at f5.6
is terrible in the corners, while the one at f11 is a lot better. Do you
think the one at f5.6 is representative of how this lens should perform?
Thanks in advance; any comments from others welcome as well.
(at f5.6) http://www.pbase.com/jamesk8752/image/49615906
(at f11) http://www.pbase.com/jamesk8752/image/49615910
Unless the lens put the crease in the left-middle, I would not reach
*any* conclusions about this lens from these pictures. You need a wide
enough flat wall, a hefty tripod and alignment to the wall. Look on
the web for Yoshiko Takinami's Pentax lens test guidelines.
Kostas
