OpticalLimits is one of my favorite review sites, and they recently completed their review of the Canon RF 16mm F2.8 STM.
First, let’s face facts, the Canon RF 16mm is the cheapest ever full frame 16mm that has ever been produced by an original camera manufacturer. Ever. There are going to be some compromises to its performance.
There are usually three main contributors to lens design;
Size / Weight
Each one of these factors affects the other. In the case of the RF 16mm F2.8 you have a small, light, and cheap 16mm ultra-wide prime. Quality is going to suffer.
If any of you have been following my patent application commentary over the years at CanonNews – you’ll know that I’ve been very outspoken about Canon’s trends on making the image circle smaller on lenses. It isn’t an uncommon thing in Canon’s patent applications. However, while doing...