KS2 dark images with Live View
Random dark images sounds like aperture block failure.
My Flickr page
"When I use LV, the images are not dark.....When I leave LV off and shoot through the view finder, they are always dark."
?? These statements seem contradictory.
As regards settings, consider using centre point only for the focusing and definitely not spot metering for the exposure. In the latter case, spot metering if not applied precisely may lead to random metering problems. I would also set to best quality JPEG and daylight white balance, plus a fixed ISO value, say 200 as a starting point.
Then you are ready for some test shots, starting with normal outdoor scenes. If there's still a problem, do please post some examples and we can perhaps see what's going on.
Put your camera in Manual mode and use the same settings for a shot taken in both LV and viewfinder modes. If there's no difference then again it points to the aperture block.
Another test is to look into the front of the lens as you take an image that is wide open. The lens blades should open up when the shutter snaps. Try this for the lowest f stop, then slowly move to high f values. If there's no change then it's the fault mentioned above.
If the camera passes these tests then the fault lies elsewhere.
If all else fails, you can still use the camera with (typically older) lens which have mechanical aperture selection dials.
There are fixes for this, but not sure on price if it's no longer under warranty.
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There is a long-running series of threads in the relevant model sections of this US forum, and there is at least one UK repairer (Asahi Photo in Brentford) which can do the relevant repairs (although I would recommend that a white solenoid is sourced from an older DSLR and supplied to them since they may otherwise use the "non-recommended" method of filing a part of the existing green one).
That said, Asahi Photo successfully fitted a white solenoid to my K-30 (which had not actually suffered ABF at that point, but "pre-emptive action" seemed a good idea!) and no ABF was then apparent or seemed likely to occur.
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