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06-01-2014, 04:57 PM   #1
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Lense Issue

I have a Sigma 300mm F/2.8 APO and when connected to my K-3 the camera flashes f--. It will not do anything. All other lenses work fine. Is the Sigma broken?




06-01-2014, 05:14 PM   #2
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QuoteOriginally posted by jwjohnson9 Quote
I have a Sigma 300mm F/2.8 APO and when connected to my K-3 the camera flashes f--. It will not do anything. All other lenses work fine. Is the Sigma broken?


No, it's not broken.

It just means that you have the aperture ring set to something other than "A", and that you have not set the "Using Aperture Ring" custom function in the K-3 to "2".

Just set the aperture ring to "A" and it should work fine.
06-01-2014, 06:17 PM   #3
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I have the aperture ring set to "A". and the Using Aperture Ring" function set to "1". I failed to mention the lens has a slight bit of play when mounted. The focus method changes to "M" from "AF.S" on occasions.
06-01-2014, 06:49 PM   #4
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You need to set Using aperture ring setting to number 2, permitted.

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