Overview

The Canon FL M 100mm f/4 is a vintage macro lens designed for bellows use, offering flat-field sharpness and precise manual control. It delivers sharp images wide open, with smooth background blur and a muted filmic signature. Build quality is typical of vintage lenses, with a smooth focus ring. It requires an adapter for modern cameras but is an affordable bargain, especially with the life-size adapter for 1:1 reproduction. It suits patient macro photographers who enjoy deliberate, detailed close-up work.