That becomes an 80mm on medium format, a 110mm lens on 6x7, and finally 150mm on a large format! I have seen so many people do it - spend $500/£500 on a EXC+ secondhand film camera and then place ...

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 ...