Autofocus Issues Tag Archive

How to Make Autofocus Work in Extremely Low Light

Have you ever been in a situation where light conditions were so poor that your camera would completely refuse to autofocus, with the lens constantly going back and forth “hunting” for focus? I am sure you have, since it is a very common problem. Sometimes you want to photograph your…

Lens Calibration Explained

If you are wondering about how to calibrate lenses, this article has detailed explanations and different methods of AF fine tuning. Due to the nature of the phase detect autofocus system that is present on all SLR cameras, both cameras and lenses must be properly calibrated by manufacturers in order…

How Phase Detection Autofocus Works

When it comes to DSLR technology, there seems to be quite a bit of confusion on how exactly phase detection autofocus works. While for most people this might not be a topic of great interest, if you are wondering how and why a camera could have an autofocus problem, this…