Canon RF lens

Canon RF28-70mm F2 L USM

28–70 mm, f/2, made for full frame. It mounts natively on 5 of our APS-C cameras; on the EOS R50 it frames like 45–112 mm.

28–70 mm · 45–112 mm equiv. on EOS R50
f/2
95 mm filter
1,430 g
Weather-sealed

139.8 mm long103.8 mm95 mm filter thread

Drawn from Canon's published size: 103.8 × 139.8 mm, at its shortest. Details simplified.

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On your camera

The view, the weight with the camera (battery and card included) and what the maker says about each pair. It is made for full-frame sensors and covers APS-C with room to spare.

Every camera in our catalogue this lens mounts on: 5
Camera	View (35 mm equiv.)	With the camera	Fit and maker's notes
Canon EOS R100	45–112 mm	1,786 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Canon EOS R50	45–112 mm	1,805 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Canon EOS R50 V	45–112 mm	1,800 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Canon EOS R10	45–112 mm	1,859 g	Fits and works Native mount: it fits and works. Neither the lens nor the camera is stabilised; use a faster shutter speed or a support.
Canon EOS R7	45–112 mm	2,042 g	Fits and works

What it frames

45 mm45 mm88 mm

Highlighted: this lens on the EOS R50. A zoom's dashed frame is its longest view.

At its closest (39 cm from the sensor) it fills the frame of the EOS R50 with a subject about 12 cm wide.

On the EOS R50, to scale

Side view drawn from the published depth of the camera and length of the lens. 1,805 g together.

Every lens with a 95 mm thread

Other telephoto zooms for Canon RF

The nearest in focal length, with the numbers that differ.

Canon RF28-70mm F2.8 IS STM45–112 mm equiv. · f/2.8 · 495 g (−935 g) · 67 mmCompare
Canon RF-S55-210mm F5-7.1 IS STM88–336 mm equiv. · f/5–7.1 · 270 g (−1160 g) · 55 mmCompare
Canon RF70-200mm F4 L IS USM112–320 mm equiv. · f/4 · 695 g (−735 g) · 77 mmCompare
Canon RF70-200mm F2.8 L IS USM112–320 mm equiv. · f/2.8 · 1,070 g (−360 g) · 77 mmCompare
Canon RF70-200mm F2.8 L IS USM Z112–320 mm equiv. · f/2.8 · 1,115 g (−315 g) · 82 mmCompare
Canon RF75-300mm F4-5.6120–480 mm equiv. · f/4–5.6 · 507 g (−923 g) · 58 mmCompare

Questions about this lens

Which cameras does the Canon RF28-70mm F2 L USM fit?

5 APS-C cameras in our catalogue: EOS R100, EOS R50, EOS R50 V, EOS R10, EOS R7. It is made for full frame, so it also fits the full-frame cameras on its mount.

What does it frame like on APS-C?

28–70 mm frames like 45–112 mm on the EOS R50 (1.6x).

What filter size does it take?

95 mm screw-in filters. Every lens with a 95 mm thread.

Where these facts come from

Facts checked 9 Oct 2026 against the makers' specification pages. How we check

Size, weight, filter thread, close focus and magnification are Canon's published figures. We have not tested this lens; for image quality, read reviews from people who have.

Specifications

Mount: Canon RF
Made for: Full-frame sensors (covers APS-C too)
Focal length: 28–70 mm
Maximum aperture: f/2
Lens stabilisation: No
Weather sealing: Yes, per the maker
Filter thread: 95 mm
Weight: 1,430 g
Size (diameter × length): 103.8 × 139.8 mm
Closest focus: 39 cm
Maximum magnification: 0.18x
Autofocus: Yes
Announced: 2018