Reasons to have multiple lenses in the same focal length/AOV

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85mm lenses and equivalents on native or adapted formats – yes, I probably have too many. Upper left row: Nikon 85 PCE Macro, Zeiss 1.4/85 Otus, Nikon 24-120/4 VR, Hasselblad HC 2.2/100; middle row: Zeiss 1.4/85 Milvus, Canon EF-S 18-55 STM (APS-C), Nikon 85/1.8 G, C/Y Zeiss 2.8/85 Leitax converted to Nikon mount; lower right row: Zeiss Hasselblad CF 2.8/80, Zeiss Hasselblad C 2.8/80 T*. I wanted to add the Hasselblad HC 35-90 zoom, but it wouldn’t fit in the picture.  And there also used to be a Zeiss 1.8/85 Batis, Zeiss ZM 4/85, Nikon 80-400 G VR and Voigtlander 90/3.5 APO, but I’m recovering now…

Though this post may seem like a hoarders’ justification more than anything – I can assure you, it isn’t. Whilst you could probably pick one lens in each focal length or angle of view and hack your way into making it work, there are some pretty solid reasons why you might not want to – and this is something I’d like to discuss today. Trust me, there are reasons why I’d prefer not to have to carry two or three seemingly overlapping lenses on assignment – but often there’s simply no choice. Here’s my logic, using the 85mm-equivalent focal length as an example.

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