Canon RF 28-70mm f/2.8 IS STM
Sony FE 400-800mm f/6.3-8 G OSS 400mm
What Buyers Say
Canon RF 28-70mm f/2.8 IS STM
The Canon RF 24-70mm f/2.8L IS USM lens receives overwhelmingly positive feedback for its sharpness, fast autofocus, and lightweight design. Users appreciate it as a versatile upgrade from kit lenses, especially for mirrorless cameras like the R7 and R5 Mark II. A single negative review is due to a delivery issue, not product quality.
Pros
- Sharp image quality
- Fast and accurate autofocus
- Lightweight and compact design
- Great value for the price
- Versatile for various settings
Cons
- Possible delivery mismanagement
Sony FE 400-800mm f/6.3-8 G OSS 400mm
The Sony 400-800mm lens is praised for its sharpness and fast autofocus, often outperforming the 200-600mm. However, it is heavy, front-heavy, and requires fast shutter speeds and good light due to the F8 aperture. A significant concern is a reported crack in the fluorine coating not covered by warranty, leading to frustration.
Pros
- Sharp image quality
- Fast autofocus
- Outperforms 200-600mm
- Internal focusing
- Great for wildlife photography
Cons
- Heavy and front-heavy
- F8 aperture limits low-light use
- Requires fast shutter speeds
- Warranty does not cover coating cracks
- Expensive extended warranty needed
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | Sony FE 400-800mm f/6.3-8 G OSS 400mm | |
|---|---|---|
| Optics | ||
| Type | zoom | super-telephoto |
| Focal Length Min | 28 mm | 400 mm |
| Focal Length Max | 70 mm | 800 mm |
| Elements | 14 | 27 |
| Groups | 11 | 19 |
| Aspherical Elements | 2★ | — |
| ED Elements | 2 | 6★ |
| Coating | Super Spectra Coating (SSC) | Fluorine coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/6.3 |
| Min Aperture | f/2.8 | 6.3-8 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 11★ |
| Build | ||
| Mount | Canon RF | Sony E |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.49 kg★ | 2.48 kg |
| Filter Thread | 67 mm | 105 mm |
| AF & Stabilization | ||
| AF Type | STM | Linear motor★ |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm★ | 1.70 m |
| Max Magnification | 0.24x | 1:4.34★ |
Pros & Cons
Canon RF 28-70mm f/2.8 IS STM
- Strong stabilization (98th percentile)98th %ile
- Strong aperture (88th percentile)88th %ile
- Strong user sentiment (88th percentile)88th %ile
- Strong bokeh (87th percentile)87th %ile
Sony FE 400-800mm f/6.3-8 G OSS 400mm
- Strong optical (100th percentile)100th %ile
- Strong af (98th percentile)98th %ile
- Strong stabilization (79th percentile)
- Strong versatility (72nd percentile)
- Below average build (9th percentile)9th %ile
- Below average user sentiment (17th percentile)17th %ile
Pricing
Canon RF 28-70mm f/2.8 IS STM
No current pricing available
Sony FE 400-800mm f/6.3-8 G OSS 400mm
Verdict
Scores 88 overall, wins 9 of 9 usage categories and 5 of 22 specs.
