To expand on Tom's ellipsis:
On film bodies without an aperture control thumbwheel, you take the
lens aperture ring off the "A" setting and use the aperture ring.
For lenses that do not have an aperture ring, those bodies without
aperture thumb wheels can control the aperture using Program and
Shutter priority AE settings. You can only use Manual exposure and
Aperture priority AE with these lenses' minimum aperture as there is
no way to manually set an aperture value. For example, the DA14 lens
mounted on an MX body (manual metering only) operates as an f/22 lens
and covers approximately a 24x24mm image on film. You meter using
only the exposure time control. (Use fast film and have a tripod/
cable release handy: it can do a lot more than you might think!)
Godfrey
On Apr 11, 2006, at 8:55 AM, Tom C wrote:
I think you've answered your own question
From: Unca Mikey <[EMAIL PROTECTED]>
A quick question, something I am curious about -- I've read a lot
here about the compatibility of older lenses on newer bodies, but
what about the other way?
Specifically, on film bodies without a thumbwheel (MZ-S, ZX-5n,
etc), how do you change the aperture when the lens is set on "A"
or the lens does not have an aperture ring? Is there a way to
directly change the aperture on the body? I assume you can affect
aperture indirectly by changing shutter speed, but can you operate
in Av mode?
Are such lenses even usable on older bodies like the MX?
