Canon's revolutionary 800mm at f/11 — diffractive optics with IS in ultra-compact design.
The Canon RF 800mm f/11 IS STM launched in 2020 alongside the RF 600mm f/11 as the longest of Canon's revolutionary affordable super-telephoto lenses. Using diffractive optics and fixed f/11, it achieves 800mm in just 1260g.
Optically good for the concept — sharp in the centre with the diffractive element enabling remarkable compactness. The fixed f/11 aperture requires bright conditions or high ISO. IS provides approximately 4 stops. STM motor for quiet AF.
Canon RF mount with 95mm filter thread. 1260g — extraordinarily light for 800mm. Extends from compact retracted position when deployed. 1.4x extender compatible for 1120mm f/16. Minimum focus distance 600cm.
Available used at mid-range prices. The 800mm reach at this weight was previously impossible. The f/11 limitation is real — usable only in good light or at high ISO on modern Canon sensors. For bird and wildlife photographers wanting extreme reach without extreme investment.