Canon EF 50mm f/1.2 L USM lens

Started 5 months ago | Discussions thread
J A C S
J A C S Forum Pro • Posts: 18,072
Re: Canon EF 50mm f/1.2 L USM lens
3

The firmware does nothing to the optical behavior of the lens. What you see most likely is the effect of the different plane of focus. A slight backfocus would create PF, a slight frontfocus would create a green fringing.

Canon EF 50mm f/1.2 USM L (full format) - Review / Test Report - Analysis (opticallimits.com)

This is rarely visible directly in normal shooting conditions bit LoCA can be very visible in the bokeh.

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