Pros & Cons
Pros
- Excellent image quality with sharpness comparable to L lenses.
- Constant f/2.8 aperture throughout the zoom range for better low-light performance.
- Lightweight and compact design compared to similar f/2.8 lenses, making it ideal for travel.
- Weather-sealed, providing durability for various shooting conditions.
- Good autofocus performance, particularly for photography and general videography.
- Versatile focal range covering 28-70mm, allowing for multiple types of shooting scenarios.
Cons
- Slight distortion and vignetting at the wide end (28mm), requiring correction in post-processing.
- Corners may be less sharp at f/2.8 compared to the center, diminishing overall image quality.
- No lens hood included, which some users feel is an oversight for a lens in this price range.
- Requires extension before shooting, which may slow down quick captures.
Verdict
The Canon RF 28-70mm f/2.8 IS STM is generally well-regarded by the community, particularly for its image quality and versatility. While it lacks the wide end of some competitors and has some optical drawbacks at 28mm, many users appreciate its lightweight design and robustness, making it a recommended option for both photography and videography needs.
Specifications
| Focal Length | 28-70mm |
| Max Aperture | f/2.8 |
| Mount | Canon RF |
| OIS | Yes |
| Filter Size | 67mm |
| Weight | 495g |
| Dimensions | φ92.2 x 76.5 mm |
| Optical Design | 15 elements in 12 groups |
Frequently Asked Questions
Does the Canon RF 28-70mm f/2.8 IS STM include a lens hood in the box?
No, the RF 28-70mm f/2.8 IS STM does not come with a lens hood included. You’ll need to purchase the appropriate Canon EW-73GB hood or a third-party equivalent separately if you want added protection and flare resistance.
How well does the image stabilization perform, and is it supported on all Canon RF bodies?
The built-in optical image stabilization offers up to 5 stops of shake reduction on most Canon RF bodies, making low-light and handheld shooting more reliable. When paired with newer bodies that have IBIS (in-body stabilization), the effect can be further enhanced.
Is the lens suitable for professional work or just for enthusiasts?
While the RF 28-70mm f/2.8 IS STM is technically not part of Canon’s professional ‘L’ series, its image quality, autofocus, and weather sealing are more than adequate for many pro environments, especially events, travel, and portraiture. However, those needing the absolute best low-light edge performance or ruggedness may still prefer an L-series lens.
What is the minimum focusing distance and maximum magnification?
The minimum focusing distance is approximately 0.28m (at 28mm) to 0.40m (at 70mm), offering a maximum magnification of about 0.26x at the telephoto end. This is sufficient for tight portraits and close-up shots, though not classified as true macro.
How does this lens compare to the Canon RF 24-70mm f/2.8L IS USM?
The RF 24-70mm f/2.8L IS USM is larger, heavier, and significantly more expensive, but it offers a 24mm wide end, internal zooming, higher-grade optics, and includes a lens hood. The RF 28-70mm f/2.8 IS STM trades a little wide-angle coverage and ultimate image quality for a massive win in portability and price—making it better for travel or lighter kits.
Is the external zoom mechanism a drawback for dust/weather resistance?
While the lens is weather-sealed overall, the external zoom means the barrel extends during use, which can introduce the possibility of dust or moisture entry compared to fully internal designs. However, in practice, the sealing is sufficient for most real-world conditions.
Compatible Cameras
Camera bodies that work with this lens
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