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| Nikon D3 & 85mm f/1.8 |
Similarly, for full-frame Canons, an EF 85mm f/1.8 USM is under three bills used and does yeoman work for candid portraits.
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| Canon 5DS & 85mm f/1.8 |
The 85mm focal length is considered so important that even in non-full frame sensor sizes, they'll make an equivalent. In the Fujifilm X-mount, which is an APS-C sensor, they make the 56mm f/1.2 R. Corrected for the 1.5x crop factor, that's an 84mm equivalent field of view.
In the defunct Nikon 1 system with its tiny 1" sensor, there's the 1 Nikkor 32mm f/1.2, which is an 87mm equivalent after correcting for the 2.7x crop factor.
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| Nikon 1 V1 & 32mm f/1.2 |
So why don't Nikon or Canon make a dedicated crop-sensor equivalent?
I suppose for the DSLR mounts it's a dead letter now. The EF-S and the DX F mounts are headed for that big camera store in the sky. With Nikon I guess you could always use the FX 58mm f/1.4, which would be an 87mm equivalent. But there was just flat nothin' in the Canon lineup that would work the same on their little APS-C sensors because Canon has always phoned it in on their crop sensor lens catalog.
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