K mount lenses are at minimum aperture by default. The Aperture ring
actually forces the aperture open, not closed, which is why you lock
the aperture ring at minimum for Program and Shutter priority modes.

-Adam

On 2/20/08, Walter Hamler <[EMAIL PROTECTED]> wrote:
> OK. I am clueless.
>
>  I put the 18~55 DA lens on the K1000 body thinking it would only work
>  at WO aperture because it has no aperture simulator. However, when I
>  actually looked at a slow shutter speed, it appears to be stopping
>  down to 16 or 22. I tried my other DA lenses and the same thing. Why
>  is my thinking wrong here?
>
>  I shot a series of exposures at 21mm setting, and the prints show a
>  definite vignette, but the usable area is much bigger than the digital
>  sensor size. I am going to scan some negs and crop to see how an 8x11
>  looks.
>
>  Somebody please tell me how this stuff really works :-)
>
>  Walt
>
>  BTW, the Alt-Print Screen does nothing to capture a screen shot. My
>  keyboard says "System Required" on the Print Screen key.  ???
>
>
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-- 
M. Adam Maas
http://www.mawz.ca
Explorations of the City Around Us.

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