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Forum: Pentax K-5 & K-5 II 10-31-2012, 08:01 PM

K-5 II AF sensor size
Posted By Big_Bang

Replies: 17
Views: 3,917

Thanks RAWR, that's a very fascinating read indeed. I wonder if anyone has ever done similar back of the napkin analysis on non-Pentax cameras, and if not.... why not.

Forum: Pentax K-5 & K-5 II 10-31-2012, 05:26 PM

K-5 II AF sensor size
Posted By Big_Bang

Replies: 17
Views: 3,917

No doubt about that.... obviously lots of love for the K-5! It seems the general work around for the K-5 is to stop down a little and focus on the face rather then the eye. Or manual focus, or live focus as necessary. All this advice is great, particularly rawr's nikon autofocus chart.

Has it been determined then that the Af sensor size is the same for the k-5II(s) as the K-5?

Forum: Pentax K-5 & K-5 II 10-31-2012, 04:45 PM

K-5 II AF sensor size
Posted By Big_Bang

Replies: 17
Views: 3,917

Most of my photo's are either landscapes at say f11, or indoor ambient light photo's of my kid at perhaps f2.8-f3.5. Its the indoor shots where I am concerned that the sensor will grab the background rather then his near eye. I could stop down some for added DOF, but then I either have to use a flash or up the ISO.... so accurate placement of autofocus is important for my shooting needs. AF tracking not so much so as I don't do sports or BIF.

Forum: Pentax K-5 & K-5 II 10-31-2012, 04:18 PM

K-5 II AF sensor size
Posted By Big_Bang

Replies: 17
Views: 3,917

There I was, already to pull the trigger and buy a K-5 when I bumped into some threads on the size of the AF points.

HTML Code:

https://www.pentaxforums.com/forums/pentax-k-5/177572-all-fuss-about-auto-focus-point-size.html

The basic jist of the thread being that the size of the autofocus crosses are much larger then the viewfinder displays such that if you attempt to focus on say a models eye or a squirrel in a tree the cross is so large the camera may lock focus on the ear, or a nearby branch, etc.

So my question is... has anyone tested the AF point size on the new k5 ii? Easy test is to hang a coat hanger on a white wall, select center focus point (or any single point I suppose) then slowly move corner of the hanger into the frame to see when you get focus lock.

Thanks all for the help. I learn so much here as a lurker its not even funny.

V/R
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