[Ishpuini]

That's a rare one.

Indeed I had it custom made for the grid. KatzEye were very good in doing that. I always had great contact with them (I had them do several ones), and regretted them having to stop their business.

Wim

[beholder3]

Is this the voice of experience or supposition? If so, then maybe better tracking might be had by turning off the overlay completely in AF-C mode?

That is logic. Split-prisms and microprisms obviously distort the image behind them and any patterns based on the image.

The overlay is known to Pentax and as such can easily be filtered away for the pattern recognition. Users changing the focusing screen hardware in ways not intended by the authors of the algorithms will have impact.

I suggest you try it out and prove me wrong.

[stevebrot]

I suggest you try it out and prove me wrong.

That is assumption, not logic. You made the claim and I suggest you provide evidence. I don't own the camera.


Steve