Pentax Quality Control Strikes Again

Started Apr 23, 2015 | Discussions thread
MJSfoto1956 Contributing Member • Posts: 560
Re: Pentax Quality Control Strikes Again

Gosman wrote:

How do you test for as decentered lens?

The best/easiest way is to point the camera/lens at a dark sky star field and manually focus on a star in the center using live view. Take a picture (at high ISO if necessary) and then examine all the stars, particularly in the corners. If one corner or side is soft then the lens is decentered.


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Nikon Coolpix A Nikon D800 Pentax K-3 II Adobe Photoshop CS6 DxO Optics Pro Elite +3 more
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