OpticalLimits has completed their review of what appears to be the best 50mm lens that Canon has ever produced, the RF 50mm f/1.2L USM.
I’ve been using the RF 50mm f/1.2L USM for a couple of weeks now and I am extremely impressed by it. 50mm isn’t my focal length of choice, but the RF 50mm f/1.2L USM is forcing me to get used to it because it’s so good.
Let’s start with a disclaimer: Any verdict has to be very preliminary at this stage – it’s our first review using the EOS R after all. Also, keep in mind that the 30-megapixel sensor is rather average in terms of resolution today.
That all being said, it is quite obvious that the Canon RF 50mm f/1.2 USM L is an awesome lens … with a similar awe-inspiring price tag. In relation to other lenses in this class, the performance is already superb at f/1.2. Yes, the outer image region is not truly stellar but it’s impressive nonetheless. The image quality is extreme at medium aperture settings – across the image frame that is. Low lateral CAs contribute to the very high image quality perception. Image distortions are generally no issue. Vignetting is though – at least in its uncorrected state. There is some heavy light-falloff at f/1.2 and f/1.6 but to be fair – that’s to be expected. Most users will not (should not?) buy the lens for its sharpness but for its shallow depth-of-field capabilities. While not truly exceptional, the bokeh is very good with a smooth rendition in the focus transition zone. Out-of-focus highlights are nicely rendered in the image center, less so towards the image corners. Read the full review