Originally posted by LightBug Yes, I'm sure your experience is real, but I'm just suggesting exploring possible calibration and SDM issue that could improve your Pentax shooting experience.
Ah right. Well, the issue is cost and accuracy. That is to say, under ideal lighting and subject distance, the accuracy of the lenses are just fine They are fine when i test them. They are fine when i chimp. Then you go for a full day of wedding in all sorts of lights and locations, and you find a lot of misfocus. The accuracy goes down under extreme lighting, and in camera calibration for each lens is a hit and miss. If the lighting swings the other way, the calibration is again off. Its easy if all i need to do is a constant micro adjustment of + or -, but at times when situations are ideal, that micro adjustment actually throws off the focus that was spot on. So i find myself micro adjusting for different locations. And in a wedding, i can be in 6 different locations in the day, throughout lighting situations.
So its really quite unpredictable. I can send it in, but i haven't because of the cost to check and timelines. I can't really be out without a lens in wedding season. I may do so come this winter.
I am being a bit harsh with pentax AF and lighting system, but i love my pentax the most because of all the other things I mentioned. But i can point my 70-200 on a D800E at anything, anyday, and it will be spot on, instantly.