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11-07-2007, 12:24 AM   #1
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Old lens problem!!!

Hi all,
I am having problems with my old Sigma 75 - 300mm lens. Bought in back in 1991 for my
SF10. When I put it on my K10d I always get an "F" displayed and have no control over DOF or S/Speed. It still takes great shots only the camera has all the control!!!

I was led to beleive it is compatible, so what have I done wrong.

Any ideas

Many thanks in advance....................

11-07-2007, 01:10 AM   #2
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1. Enable aperture ring in menu (set "using aperture ring" to "permitted").
2. Be in M-mode
3. Set aperture and press green button. The camera closes the apperture for a moment, measures and sets the shutter speed.
11-07-2007, 01:53 AM   #3
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Is the aperture ring set on auto if it has an auto setting? Otherwise follow Blende's instructions.
11-07-2007, 01:55 AM   #4
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Or just set the aperture ring to A, and it'll work.

I have the same lens, and although I hardly ever use it I love it.

11-07-2007, 02:21 AM   #5
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Ah, of course, if the lens has an A-setting, this would be the obvious solution.
11-07-2007, 03:05 AM   #6
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Original Poster
Hey thanks blende8, Little laker and SupremeMoFo, would you beleive the A on my apeture ring was not locked in. I have control again.

Thanks so much.....
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