One very simple workaround (albeit fiddly) would be to allow the user
to *tell* the camera what aperture the lens is set to. In other words,
make the f-stop indicator blink in 'M' mode with an M/K/A(in non-A). If
you dial in the correct number that you've got on the lens, the camera
knows everything it needs to do everything. Granted, it requires setting
the f-stop correctly in two places, but it would be a simple thing to do.
With that, stop-down metering wouldn't even be necessary with an A in non-A
or a modified K/M.
Gack..
It actually wouldn't be that bad. In some ways, it's even less of
a kludge than the stop-down metering. If it were a modified (with
insulators) lens, or an 'A' in non-A, it could read absolute aperture. If
used with a plain M, it could be relative... i.e. stops from full-open.
Then there would be very little functionality lost... basically you get Av
mode rather than only M mode.
-Cory
*************************************************************************
* Cory Papenfuss *
* Electrical Engineering candidate Ph.D. graduate student *
* Virginia Polytechnic Institute and State University *
*************************************************************************