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Forum: Troubleshooting and Beginner Help
06-03-2015, 01:05 PM
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The problem with focusing and recomposing with the shutter button is that if your finger lets off pressure on the button, then the camera will re-focus on some other point in the image when you go to fully press the shutter button. To make matters worse, Pentax DSLRs don't give a tactile response upon half-press, i.e. you can't "feel" when you've half-pressed the shutter.
Disabling the focus on half press function, and using the back button means that once you release the back button, the camera will not try to refocus, even from shot to shot, unless you tell it to.
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