Losing DoF

In a recent competition it was remarked that although I'd set the aperture (aperture priority)to F/16 the camera had apparently decided that f/8 was sufficient. Is this a fault/bug with Pentax cameras and how can I get the aperture I want to use ie f/16 and not f/8 in this case.

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Regards
Stan

PPG

You must have it in some sort of program mode Stan, and
it's changing to a better combination of aperture/speed.

Manual mode is probably the safest to ensure f/16, but make
sure that the lens isn't defracting too much at f/16.

I keep meaning to try some of my lenses to see which performs best
at f/16.

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Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

Thanks Algi. I'll have a look at the original RAW image and see what the exif says.

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Regards
Stan

PPG

If I remember correctly, on some Pentax DSLR, there is an option to override the setting inputted by the user if a proper exposure can't be obtained. Worth looking into.

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Yves (another one of those crazy Canucks)

Yes, this is called 'auto ev compensation' and might be affecting things. On my camera it is on custom menu 2, Off is 1, on is 2 ... When on it's supposed to change one of the exposure variables if whatever the user set would result in poor exposure. I haven't tried it, but I wonder .. Does it operate if you're just, like, half a stop off the meter centre, or do you have to be more like 2 our 3 stops out?

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