Canon's recent patents for a 24mm f/0.7 and 32mm f/0.75 lens are making waves, and it's easy to see why. The faster the lens, ...

The taller the column, the better the lens performance. CA (Chromatic Aberration) is measured with in-camera corrections switched off, as far as we can know anyway. CA is well controlled ...

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 ...