DPReview.com is closing April 10th - Find out more

Purple Smearing w/K-5IIs

Started Jul 15, 2014 | Discussions thread
Richard B.
Richard B. Veteran Member • Posts: 5,896
Re: Purple Smearing w/K-5IIs
2

Joe, the purple smearing is just from badly over exposed highlights. It has nothing to do with the presence of an AA filter or not. I have seen it many cameras when the contrast range is beyond what the sensor can capture.

Here are two shots on the K-5 IIs. In the first, you can clearly see the purple smearing on the left hand side of the window. The second has some heavy negative exposure compensation dialed in and the purple smearing is gone.

-0.3 EV

-2.7 EV

These are not quite the same shot, but I think they illustrate the point. I noticed you were using quite a high ISO which would have reduced your DR some.

Just to prove the K-5 IIs can take pictures of cupolas. I missed on DOF for this one, but the exposure is good.

-- hide signature --
 Richard B.'s gear list:Richard B.'s gear list
Pentax K-5 IIs Pentax K-3 Mark III Pentax smc DA 15mm F4 ED AL Limited Pentax smc DA 17-70mm F4.0 AL (IF) SDM Pentax smc DA 55-300mm F4.0-5.8 ED +8 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow