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EF-M or EF Wide Angle for M6 Mark II

Started 8 months ago | Discussions thread
nnowak Veteran Member • Posts: 9,075
Re: EF-M or EF Wide Angle for M6 Mark II

A couple of general comments on the speedbooster. In general, the wider and brighter a lens, the more likely it is to have optical problems on a speedbooster. Wide angle zooms tend to be especially bad on a speedbooster. The EF 24mm f/2.8 IS USM might be OK on the speedbooster.  Second, you can only use a speedbooster with full frame EF lenses. Crop sensor EF-S lenses will show very heavy vignetting, and the extended rear element may prevent the EF-S lens from even mounting on the speedbooster.

Basically, using a speedbooster for your wide angle needs will likely end in disappointment.

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