Canon RF 28-70mm f/2.8 IS STM 28-70mm
This constant f/2.8 standard zoom stands out with a 499g build and integrated stabilization, making it the lightest RF zoom to offer a fast aperture across the 28-70mm range. Minimal focus breathing and a leadscrew-type STM motor enable smooth, quiet video autofocus, while the compact design keeps it highly portable. It’s best for hybrid shooters and enthusiasts who want a lightweight everyday lens for portraits and video without the bulk of L-series glass.
Snapshot
Pros & Cons
Pros
- Strong user sentiment (85th percentile) 85th
- Strong stabilization (83rd percentile) 83rd
- Strong versatility (77th percentile) 77th
Cons
- Below average bokeh (5th percentile)
- Below average aperture (8th percentile)
- Below average macro (12th percentile)
- Below average optical (18th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
- Q1 202695/100
Buyers praised the lens as compact, sharp, and great value. One review highlighted fast autofocus and excellent image quality.
- Lens is compact and lightweight for a standard zoom
- Sharp image quality and reliable autofocus
- Excellent value for the price
- Fast and well-protected shipping from Adorama
- Q4 202583/100
Buyers praise the lens as a lightweight, fast, and affordable upgrade for mirrorless Canon cameras, delivering excellent quality for the price. One delivery complaint stands out.
- Excellent value and quality for the price
- Lightweight and fast, ideal for everyday use
- Great upgrade from kit lens for R7 and R5m2
- Delivery issues with FedEx and poor customer service
- Q2 2025100/100
Buyers in Q2 2025 praised the lens for its sharpness, low-light performance, and value, calling it a future-proof investment despite crop sensor limitations.
- Sharpness and image quality praised as outstanding
- Constant f/2.8 aperture great for low light and depth of field
- Best value for money in RF lens lineup
- Crop sensor users wish for wider angle on full frame lens
- Q1 2025100/100
All four reviews are 5-star, praising the lens as sharp, lightweight, and a great value for low-light photography.
- Sharpness and image quality match the RF 24-70mm f/2.8
- Lightweight and balanced, preferred over heavier alternatives
- Great value for a needed lens in the collection
- Excellent customer service and fast shipping from Adorama
Based on 23 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 28 |
| Focal Length Max | 70 |
Aperture
| Max Aperture | f/28 |
| Constant | Yes |
Build
| Mount | Canon RF Mount |
| Weight | 0.5 kg / 1.1 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | Yes |
Focus
| Max Magnification | 0.24x |
vs Competition
| Spec | Canon RF 28-70mm f/2.8 IS STM 28-70mm | Nikon NIKKOR Z 17-28mm f/2.8 | Tamron Di III 28-75mm f/2.8 VXD G2 | Sigma Contemporary 10-18mm f/2.8 DC DN | Panasonic Leica DG Vario-Elmarit H-ES12060 | Sony G SELP28135G.SYX |
|---|---|---|---|---|---|---|
| Focal Length | 28-70mm | 17-28mm | 28-75mm | 10-18mm | 12-60mm | 28-135mm |
| Max Aperture | f/28 | f/2.8 | f/2.8 | f/2.8 | f/2.8 | f/4 |
| Mount | Canon RF Mount | Nikon Z | Sony E | Sony E | Micro Four Thirds | Sony E |
| Stabilization | true | false | false | false | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 499 | 450 | 540 | 260 | 320 | 420 |
| AF Type | Autofocus | Stepping Motor | VXD | Autofocus | linear motor | SSM |
| Lens Type | zoom | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Canon RF 28-70mm f/2.8 IS STM 28-70mm | 54.6 | 5.4 | 53.9 | 11.8 | 18.4 | 7.7 | 85.3 | 77.2 | 48.8 | 83.2 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87 | 88.1 | 73.6 | 86.3 | 87 | 85.8 | 90.8 | 68.1 | 64.6 | 38 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.2 | 87.3 | 87.8 | 85.8 | 80.4 | 78.2 | 83.1 | 38 |
| Sigma Contemporary 10-18mm f/2.8 DC DN Compare | 54.6 | 83.5 | 87.3 | 93.3 | 81.6 | 85.8 | 80.4 | 69.1 | 68.8 | 38 |
| Panasonic Leica DG Vario-Elmarit H-ES12060 Compare | 98 | 88.1 | 83.1 | 50.4 | 90.2 | 85.8 | 44.2 | 93.1 | 63.5 | 83.2 |
| Sony G SELP28135G.SYX Compare | 94.2 | 80.2 | 75.5 | 31.2 | 87 | 69.9 | 63.3 | 92.4 | 50.2 | 92.8 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
