Thanks, Darren - the eraser did not help. I also tried tightening the
lens mount screws, but they were plenty tight so I didn't accomplish
anything. I was hoping it might be a simple matter of one contact on the
mount not working, but if so it is more than just being dirty.
I pulled the battery out and will leave the camera without a battery for
a day or so - sometimes that can reset things but I'm not holding out
much hope.
Mark
On 5/1/2015 7:10 PM, Darren Addy wrote:
First thing to try with anything resembling contacts problem is to
take a clean pencil eraser and rub the contacts on the body and lens
(to clean them). You shouldn't need to make any eraser shavings, but
if there are blow them off in such a way that you don't get them
inside the camera body. That is enough to fix most contact related
issues.
Hope it works!
On Fri, May 1, 2015 at 4:46 PM, Mark C <[email protected]> wrote:
My IR converted K10d has started acting strange - basically it pretty much
ignores any A, F, FA or DFA lens that is attached to it and treats them like
a K or M mount. The camera will do nothing unless "using aperture ring" is
enabled in the custom options. Even then, if the apeture ring (if present)
is set to the "A" setting, the camera will not stop down the aperture while
making an exposure or when the DOF preview is invoked. The camera does show
the aperture and shutter speed setting on the LCD and allows them to be
changed, and shows them changing in program modes, but it never actually
stops down the lens to the shown aperture. The exif data in images shows the
lens wide open in all shots, even when the LCD shows it stopping down. The
camera correctly detects the maximum aperture of different lenses attached
to it.
At first I thought it was a mechanical problem with stopping down the lens -
but if the apeture ring is moved off the A setting, or if a pre-A K mount
lens is attached, then the camera works as it should. In manual mode it does
stop down metering and (in manual mode only) it stops down the lens and DOF
preview works. So the mechanical couplings work, it seems like the camera is
unable to detect a lens in A mode in order to stop it down, though it does
detect the lens's maximum aperture and shows that the aperture should be set
to on the LCD screen
Has anyone experienced something like this? Could this be something simple,
like an issue with contacts in the mount? I like the camera and have gotten
some nice images with it, but have actually taken only about 5000 exposures
with it in the 5 years I've owned it, so the utility of repairing it is
questionable.
Any thoughts about what might be going on would be appreciated.
Mark
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