The Canon RF 135mm f/1.8 L USM not only makes a case for itself as the best Canon prime lens, but as the best 135mm lens period.
Canon's RF 135mm f/1.8L IS USM & SPEEDLITE EL-5 - Newsshooter
Canon's RF 135mm f/1.8L IS USM & SPEEDLITE EL-5 - Newsshooter
Canon RF 15-35mm F/2.8L IS USM Lens Review - Introduction
Canon RF 135mm f/1.8L IS USM hands-on review
Canon RF 135mm f/1.8 L USM Review: Setting a New Standard
Canon RF 135mm F1.8 L IS USM First Impressions
Canon RF 135mm F1.8 L IS USM First Impressions
Canon RF 135mm f/1.8 L USM Review: Setting a New Standard
Canon RF 135mm f/1.8 'L' IS USM lens review
Canon RF 135mm F1.8 L IS USM Lens Review
Canon RF 135mm f/1.8L IS USM Review & Sample Images by Ken Rockwell
Canon RF 135mm F/1.8 Review and Sample Images