Update Jul 29,2025: Prices updated and a minor issue with an image fixed
With the recent release of Sony's FE 400-800mm F6.3-8.0 G OSS lens, the collection of mirrorless camera lenses that reach an 800mm maximum focal length has grown to five. Canon dominates the group with three offerings: the Canon RF 800mm F5.6L IS USM is the largest, the Canon RF 800mm F11 IS STM is the smallest due to its slower F11 maximum aperture, and the RF 200-800mm F6.3-9 IS USM falls in between. Meanwhile, Nikon is represented solely by the Nikkor Z 800mm F6.3 VR S, which ranks as the second largest with its constant F6.3 maximum aperture.
Prices
It’s easy to see that long focal lengths come with hefty price tags. Prices range from $1,099 for the Canon RF 800mm f11 to a whopping $18,199 for the Canon RF 800mm f5.6, clearly showing how aperture size impacts both cost and physical size. Below, you'll find a scaled size comparison of these five lenses, a side-by-side comparison that includes their compatible cameras, and a detailed table outlining their specifications and features.
(click on the image for a larger version)
All Native 800mm Lenses for Mirrorless Cameras Size Comparison
All Native 800mm Lenses with Cameras Attached
You can find the interactive version of this comparions here: Canon EOS R5 Mark II vs Nikon Z8 vs Sony Alpha A1 Mark II vs Canon EOS R5 Mark II vs Canon EOS R5 Mark II Size Comparison
By the way, the only native mirrorless lens that has a focal length longer than 800mm is the Canon RF 1200mm F8L IS USM.
Canon RF 1200mm F8L IS USM is the uncontested king of Telephoto Lenses!
Canon EOS R5 Mark II vs Nikon Z8 vs Sony Alpha A1 Mark II vs Canon EOS R5 Mark II vs Canon EOS R5 Mark II Specs Comparison