Originally posted by kjphilippona I have also fine adjusted my lenses to my cameras. i have taken pictures of animals at the zoo and of my grand daughter posing my nephews playing in the back yard. The cameras tell me that my image is focused but when i look at them on my computer they are not always sharp!
Frustrating, I'm sure. With respect, though, Pentax cameras are superb for this kind of use... It's far more likely that there's some element of your technique that's not quite right, and that would be transferable to any camera.
A few questions:
- Are you certain that AF fine focus is set up accurately for each lens you've used, and how did you achieve / verify this?
- What focus area are you using (spot, etc.)
- Are you using AF.S or AF.C?
- What lens(es) are you using, and have you checked to ensure they're not suffering from focus shifting when stopped down?
- What was the shutter speed and lens focal length on the unsharp photos?
- What was the ISO setting of the unsharp photos?
- Are you shooting RAW or JPEG?
- Do you have shake reduction enabled or disabled?
- What are you aiming at when you focus on the subject - is it a suitable AF target?
- When photographing your nephews playing, are you using a high enough shutter speed to capture motion without blur?
- Do you get accurate results if using Live View?
Again, by all means look at other brands, but in the use cases you've described, there's no reason why your Pentax camera and lens shouldn't be highly accurate. I get repeatable, accurate AF on these kind of subjects even with my oldest Samsung GX-1L Pentax clone...