Here are the full specifications for the Canon RF 50mm f/1.8, I expect this lens to be announced later tonight.
- 6 elements in 5 groups
- Minimum focusing distance: 0.3m / 11.8″
- Maximum magnification: 0.25x
- 7 aperture blades
- 43mm filter thread
- Size: 69.2mm / 2.72″ x 40.5mm / 1.59″
- Weight: 160g / 0.35lbs
- Price: $199 USD
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I expect a quality similar to the EF 2.8 40mm (both have one aspherical element which helps a lot wide open and in the 50mm range) and great flare resistance/contrast in contralight due to the low lens element/group count: Fine!
I will use the RF 35 due to its better 1:2 macro and the built in IS but if I wouldn't own it I would buy it without hesitation!
EDIT: And if I find out that this lens is better suited to film lessons from a tripod than 35mm I will buy this one which will well perform AF with DPAF and STM.
Same filter thread size like EF-M 32 and EF-M 22 - is there any chance for a convergence between RF and M camera line (with a dual flange distance mount however this will be realized)?
Hoping it's isn't just the usual swap the $ for £.
£200 ($260) for the 50mm wouldn't be that much of a bargain when the previous Nifty Fifty's have been nearer £100.
No it's a pure simple double-gauss design. So it's pretty much identical in capabilities to the EF 50mm STM. Slightly better macro (0.3m MFD vs 0.35m = 0.25x instead of 0.21), same number of diaphragm blades, and same weight.
It's not a lens for me, as I'd prefer a 50mm f1.4L which would have great IQ & build at a more moderate size & weight than the f1.2L. But anything that helps Canon with its market share and balance sheet is good news for everyone in the R mount system.
I don't know what reputation this camera had as far as IQ goes, but I do remember that the simple double gauss 5 element 5 groups 40mm f/1.9 in the 1981 Canon Sure Shot AF35ML was very sharp indeed. In fact annoyingly so; it was better than my Nikkor lenses at the time.