Canon RF 28-70mm f2.8 IS STM: Allround Lens for EOS R5 II
By Foto Erhardt | Kameras, Objektive & Zubehör ► günstig kaufen | Published: 2026-10-21
Category: Product Reviews
The Canon RF 28-70mm f2.8 IS STM offers a constant f2.8 aperture, optical stabilization, and weather sealing in a compact, affordable design—ideal for EOS R5 II users who want versatility without the L-series price.
Quick answer
The Canon RF 28-70mm f2.8 IS STM is a versatile standard zoom that delivers a constant f2.8 aperture, built-in stabilization, and weather sealing in a lighter, more affordable package than L-series alternatives—making it a strong match for everyday shooting on the EOS R5 II.
Why this lens stands out for the EOS R5 II
The RF 28-70mm f2.8 IS STM is the first non-L-series RF zoom to offer a constant f2.8 aperture. That means consistent low-light performance and depth-of-field control across the entire zoom range, without the weight and cost of the L-series 24-70mm f2.8.
Its optical image stabilizer works with the EOS R5 II's in-body stabilization for steady handheld shots, even in dim conditions. The STM autofocus is quiet and smooth—ideal for both stills and video.
Trade-offs to consider
This lens lacks the extreme weather sealing and premium build of L-series zooms. If you frequently shoot in heavy rain or dust, the L-series 24-70mm f2.8 offers more robust protection.
The 28mm wide end is slightly less wide than the typical 24mm start. For architecture or tight interiors, you may want to pair it with a wider prime like the RF 16mm f2.8.
Decision rules
- Choose this lens if: You want a constant f2.8 zoom for travel, portraits, and everyday use on the EOS R5 II, and you value a lighter kit and lower cost over maximum build toughness.
- Consider the L-series 24-70mm f2.8 if: You need the widest 24mm field of view, extreme weather sealing, or the most rugged build for professional use in harsh conditions. The L-series adds about 200g and a higher price.
- Pair with a wide prime if: You often shoot interiors or landscapes where 28mm feels too tight. The RF 16mm f2.8 or RF 14-35mm f4 L IS USM are good companions. This keeps your main zoom versatile while covering ultra-wide needs.
Product highlights
- Canon RF 28-70mm f2,8 IS STM: First non-L-series zoom with constant f2.8 aperture; features optical image stabilizer and weather sealing. You get reliable low-light performance and handheld stability without paying the L-series premium.

Canon RF 28-70mm f2,8 IS STM
Who is this lens for?
Best for
- EOS R5 II owners who want a single do-it-all zoom for travel, street, and portraits
- Photographers upgrading from a kit zoom who want f2.8 without L-series cost
Not ideal for
- Professionals needing maximum weather sealing and 24mm coverage
- Video shooters who require parfocal or internal zoom (this lens extends when zooming)
