I do not have an *ist, but I know this camera and the *ist D, and I am
sure that this trick really works, as after unlocking the lens and
turning it ~20 degrees, the *ist (or *ist D) has no possibilty to open
the aperture via the lens's aperture lever, as the lens's aperture lever
can't be pressed by the camera anymore. However, as I said earlier, this
is an awkward manner of operation. The lens sits on the k-mount
unlocked. Turning the aperture ring or the focusing ring easily turns
the whole lens - either so that the camera opens the aperture, or so
that the lens is fully released and can fall off the camera. If you want
the trick to work well, you would need another hole in the mount of the
lens so that it would have a 2nd locking position. Shall I drill holes
in all my K- and M-series lenses?
I think a software update of the *ist D (to enable metering when DOF
preview is activated) would be a much better solution!
Arnold
P.S. http://www.digitalfotonetz.de/ is good, but why does it load so
slowly?
Heiko Hamann schrieb:
Hi,
could those lucky ones with a *ist please try this old trick:
- set your *ist to Av
- attach a non-A lens
- choose a small apperture
- unlock the lens an turn it some milimeters, until the aperture closes
- the lens should still fit firmly
Now: Can you choose another aperture on the lens and does the *ist meter correctly? If this works, it would be a sufficient workaround for me (and probably others interested in the *istD) to use any older lens in aperture priority.
Cheers, Heiko
