Want to shoot fantastic pictures of people without spending a fortune? Jeff Meyer and the AP team pick the best budget ...

Many people love Pentax SLRs for their quality construction, stabilized sensors, and classic design. These are the best K-mount SLR lenses we've tested. Whether you own a Leica rangefinder or ...

You might just have one or two options for a particular type in the mount, and some options might seem a bit outdated compared with lenses from other systems. For instance, whereas Pentax still ...

The taller the column, the better the lens performance. Chromatic aberration (CA) is the lens' inability to focus on the sensor or film all colours of visible light at the same point. Severe ...