Introduction

Over the past years we saw huge improvements in optical performance of 35mm format lenses – a trend started by the Zeiss Otus and Sigma Art lineups – and the latest Sony GM and Nikon Z designs offer an optical performance unheard of only a few years before. Still, there are some lenses that never saw a successor and this Canon EF 50mm 1.0L USM is one such lens. Released in 1989 this is still the fastest fullframe autofocus lens ever made. But what compromises were needed to make a lens like this, leading to no one ever daring to try this again for at least 36 years? Let’s find out in this review.
The lens is mainly being tested on a 24mp Nikon Zf.
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