K5 fault

Denmark
Posted 28/05/2012 - 18:43 Link
I recently purchased a Pentax K5 slr and have been using it with 16-45,10-17 and 55-300mm lenses. There is a fault that I did not notice unless there was alot of sky in the shot. There is a reverse C shape in the upper left quarter of the frame clearly visible on the photo I put on the gallery of a ship in Douglas bay. You'll see it directly over the ship.I've tried cleaning the lenses & the mirror & screen with alcohol & soft cloth to no avail. Any ideas anyone ?
fatspider
Posted 28/05/2012 - 18:47 - Helpful Comment Link
From that image it doesn't look like the dreaded sensor stain, although it's difficult to be certain at that resolution, can you post a crop of the affected area so we can see it at 100%

PS: welcome to the forum.
My Names Alan, and I'm a lensaholic.
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Edited by fatspider: 28/05/2012 - 18:47
Mike-P
Posted 28/05/2012 - 18:59 - Helpful Comment Link
Looks like a small fibre on the sensor.

You can use a rocket blower (some people don't like to) or some pads to clean it up.
gartmore
Posted 28/05/2012 - 21:23 - Helpful Comment Link
Too late, I fear.

Never, ever, touch the mirror or the screen; they are very delicate and can be damaged by even the lightest touch. Neither of them can have any effect on the final image because they are in a different light path. Even quite noticable marks on lenses will have little effect. It is almost certain, as Mike says, that its just a little bit of fibre or dust on the sensor.
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -

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