The oldest trick in the book an electronic camera, of course, is to
turn it off, remove the battery, let it think about its own mortality
for several minutes, re-insert the battery and try again.
http://photo.net/photos/RickW


On Sat, May 2, 2015 at 10:29 AM, P.J. Alling <webstertwenty...@gmail.com> wrote:
> My old *ist-D has a similar problem, mounted lenses simply won't stop down
> using either DOF preview or the green button, in any mode.  I believe
> there's a broken lead either on a flex connector or the circuit board, or
> something is interfering with one of the micro switches resetting.
>
>
> On 5/2/2015 8:56 AM, Mark C wrote:
>>
>> 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 <pdml-m...@charter.net> 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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>>
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>
>
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> -- Woody Allen
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