I just checked. One can indeed use Av as you say with adapted M42
lenses, or as in my case, adapted 645 lenses. When set to Tv mode, the
K-3ii simply ignores the setting and act as if the camera is set to Av.
Same with TAv mode.
J.
Den 12.01.2017 16.42, skrev P. J. Alling:
No it's shutter priority where the camera needs information from the
lens. The only information the camera needs in aperture priority is how
much light is coming through the lens. I use Av with my mirror
telephoto lenses a fair amount of the time. It gets the exposure
pretty close... usually. If you can manually stop the lens down, and
in this case it this is the only option, as it would be with an adapted
M42 lens. The procedure would be focus and frame with the lens wide
open, then manually stop down to the aperture you want to shoot at. I
used to do that with preset lenses.
With the camera set to Av, as the aperture shuts down, the camera will
automatically set the shutter speed which my old Spotmatic couldn't do.
On 1/12/2017 2:02 AM, Jostein Øksne wrote:
To use AV, the camera needs to know which stop the lens is set to.
With no couplings, no info.
So no go.
Jostein
Den 12. januar 2017 05.34.50 CET, skrev "P. J. Alling"
<[email protected]>:
If the lens stops down as you turn the aperture ring, basically like a
preset mechanism, why not set the camera mode to Av. Then one dial
will
work to change shutter speed and the other to either adjust ISO or
exposure compensation. I'd use comp, could make a case for either.
Using manual exposure and the green button doesn't seem to make a lot
of
sense in this case.
On 1/11/2017 4:12 PM, Gonz wrote:
There is no aperture linking at all. If you stop it down, the view
gets dim and you need to press the green button to meter. So
essentially you focus at 2.8, stop down to the aperture you want,
meter with the green button, and snap the pic. Its a pain, but if
your subject is static, not much of a problem. If your subject is a
bug or something more dynamic, its going to be more problematic.
Live
view is also dim when stopped down...
On Wed, Jan 11, 2017 at 2:26 PM, Larry Colen <[email protected]> wrote:
Gonz wrote:
Well the Venus (Laowa) 60mm 2.8 macro lens (2:1) came. I'm very
impressed with the packaging. It comes with a nice protective
pouch,
but the very nice thing was that it came in a vacuum packed wrapper
around the lens, assuring that no dust would get in at any time.
It
also came with a clear front filter, a nice touch. The lens feels
very solid and well built. No rattling and its nice and hefty too.
The focus feels smooth and just the right amount of resistance.
Tried a few pics with it and its extremely sharp. I am going to
post
some pics here but so far it is an amazing lens for the price. The
stop-down metering does not bother me. I suppose it could get a
little problematic in situations where the subject is dynamic, like
a
bug or something.
By stop down metering, do you mean like old m42, where you have to
stop it
down to meter? Or rather that there isn't a lever to stop down the
lens when
you take a photo, so the aperture is physically what is set on the
ring? How
does that work in live view? My guess is that live view doesn't
even
notice.
--
Larry Colen [email protected] (postbox on min4est)
http://red4est.com/lrc
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