I want the FA 200/4 macro because of its reputation for sharpness and
resolution. I would probably focus it manually most of the time.
However, I've found that by using the *istD joystick and choosing the
right focus point I can get very accurate autofocus. Sometimes my eyes
are just too tired to do a good job with manual. When that happens, I
go autofocus.
Paul
On Jul 9, 2005, at 8:51 PM, Pål Jensen wrote:
Shel wrote:
Why would anyone want an autofocus macro lens? I
just don't understand that. Everything I understand about macro
photography suggests that you want to be very precise with focus in
order
to obtain maximum DOF, or very specific DOF, and leaving that
precision to
autofocus seems an odd thing to do.
AF works wonder with moving subjects as long as you are not exactly at
1:1 (then theres only one direction to focus!). It works for insects
(with flash naturally). Even insects on grass that moves back and
forth in the wind. The predictive AF manages a hit rate in this
circumstance of more than 80%. Not bad for back and forth movement. It
would be virtually hopeless with manual focus...
I've read countless times that AF doesn't work for macro but this is
always from Nikon and Canon shooters. It certainly work on a Pentax,
but then Pentax doesn't trade AF precision with speed...
BTW I don't think you can find a better telephoto lens than the FA*
200/4 Macro ED IF.
Pål
