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Forum: Pentax K-3 & K-3 II 12-02-2016, 02:54 PM  
Older lenses on K3 Pentax A
Posted By UncleVanya
Replies: 29
Views: 3,168
I should have linked this a long time ago in this thread. It confirms the Matrix data from earlier plus adds a heap of additional data about mode/metering/etc by body type and lens type.

Summary of the K-Mount Evolution, Names, and Features
Forum: Pentax K-3 & K-3 II 12-01-2016, 08:59 PM  
Older lenses on K3 Pentax A
Posted By UncleVanya
Replies: 29
Views: 3,168
I always get this confused. So A series does permit Matrix - thanks.
Forum: Pentax K-3 & K-3 II 12-01-2016, 02:31 PM  
Older lenses on K3 Pentax A
Posted By UncleVanya
Replies: 29
Views: 3,168
As far as I recall. I can't recall how M mode works with A series lenses but I think even then you are metering wide open and setting aperture on the camera using the A setting on the ring.
Forum: Pentax K-3 & K-3 II 12-01-2016, 02:20 PM  
Older lenses on K3 Pentax A
Posted By UncleVanya
Replies: 29
Views: 3,168
If your lens has the aperture ring in the "A" setting and the lens is detected correctly then you should be able to simply meter and shoot without the green button in Av mode or TAv mode or even Tv mode. Some errors may creep in as the metering mode is not matrix and the lenses have larger inaccuracies in metering than DA lenses. Typically a little chimping is needed or shooting in raw to make adjustments to lighting.
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