Canon release the new RF 16mm f/2.8 STM lens which compliments the 50 and 35mm “affordable” RF lenses available today.
On the R6 it is pin sharp in the center with a little less sharpness in the corners. On the R5 with its 45mp sensor some report quiet a bit of sharpness fall of in the corners.
The f/2.8 gives a great be of light input for the lens which should hold you in good steed for a varaity of shots.
It is small, about the same size as the RF 50mm so popping it in your bag as your go to wide angle lens is a no brainer.
Can easily compliment your 24-105 or 70-200 as a useful tool for that landscape or cityscape shot that those ranges can not achieve.
At about £300 it is well within many photographers budget, just like the 50 and 35 which are great RF mount lenses also.
I have pre-ordered mine.
For the reasons above, I have pre-ordered mine on the Canon website and look forward to making a full review as soon as I can.