A lens focuses light onto the sensor of a digital camera and is critical to photography. To help you make an informed choice when buying or mounting an optic, we explain some of the most important ...
Replay: Do we really need to keep using 35mm as our baseline for focal lengths, or is there a much better way? Why do we keep reading descriptions like ‘3.7 mm to 92.5 mm (equivalent to 28.8 mm to 720 ...