It seems there are perhaps as many roads to Rome as there are 50mm lenses and their approximate equivalents – these are just some of the examples I’ve owned and/or used in the last five years, and is by no means extensive. Off the top of my head, missing are the ubiquitous Nikon 50/1.4, which I’ve owned in three versions; the 55/1.2 pre-AI; the 50/2.8 Micro-Nikkor; the Leica 50/2 Summicron; the Hasselblad CF 4/50 FLE, the Pentax 645 55/2.8 SDM – I could find images of these lenses I’d shot previously – and we haven’t even talked about other brands or extending the envelope downwards, to say 45mm or equivalents in other formats (e.g. 25mm on M4/3, or 35mm on APSC). So why the fascination with and proliferation of lenses around this range?