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07-25-2012, 10:02 AM   #1
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How to lock the aperture on a K-7?

How do I manually lock the lens aperture, so that it permanently stays at a particular f-stop as I shoot photos?

Thanks!

07-25-2012, 10:05 AM   #2
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one of several ways ,depending on which lens you are using

1, if your lens has an aperture ring, set the aperture mechanically
2, shoot in AV mode and select the aperture you reequire, the camera will do the rest of the exposure calc.
3, set the camera to manual mode and take total control of all facets of exposure
07-25-2012, 11:03 AM   #3
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... or, in P mode, turn the rear dial (by default) and it will adjust the aperture and keep it there,

... or, in various auto modes, press the AE-L button to lock the exposure,

... or, use TAv mode to lock both aperture and shutter speed but vary ISO,

... etc.
07-25-2012, 11:07 AM   #4
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QuoteOriginally posted by stuskier Quote
How do I manually lock the lens aperture, so that it permanently stays at a particular f-stop as I shoot photos?

Thanks!
what's the specifics of the question.

how are you shooting?

there are lots of possible answers, some of which have already been offered.

If you are discussing the green button, just program it in the functions to do a Tv Shift

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