Canon RF 28-70mm f/2.8 IS STM
BM Premium 420mm Lens 420-800mm
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
BM Premium 420mm Lens 420-800mm
The lens receives mixed feedback: some users praise its value for money and image quality for certain uses like architecture, but many report serious issues including incompatibility with Canon EOS R8, poor image quality, flimsy plastic build, and slow autofocus unsuitable for wildlife. The need for a tripod due to bulkiness and manual focus annoyance are also noted.
Pros
- Good value for money
- Decent image quality for architecture
- Pleasant for certain projects
Cons
- Incompatible with Canon EOS R8
- Poor image quality
- Flimsy plastic zoom mechanism
- Slow autofocus for wildlife
- Bulky requiring tripod
Scores
Specifications
| Canon RF 28-70mm f/2.8 IS STM | BM Premium 420mm Lens 420-800mm | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 28 mm | 420 mm |
| Focal Length Max | 70 mm | 1600 mm |
| Elements | 14 | — |
| Groups | 11 | — |
| Aspherical Elements | 2★ | — |
| ED Elements | 2★ | — |
| Coating | Super Spectra Coating (SSC) | multi-coated |
| Aperture | ||
| Max Aperture | f/2.8 | f/8.3 |
| Min Aperture | f/2.8 | f/8.3 |
| Constant | ✓ | ✓ |
| Build | ||
| Mount | Canon RF | Canon RF |
| Format | full-frame★ | — |
| Weather Sealed | ✓★ | — |
| Weight | 0.49 kg★ | 1.14 kg |
| Filter Thread | 67 mm | 62 mm |
| AF & Stabilization | ||
| AF Type | STM★ | manual focus only |
| Stabilization | ✓ | ✓ |
| Stabilization Stops | 5.5 stops★ | — |
| Focus | ||
| Min Focus Distance | 270 mm★ | 420 mm |
| Max Magnification | 0.24x★ | — |
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
BM Premium 420mm Lens 420-800mm
- Strong versatility (86th percentile)86th %ile
- Strong stabilization (79th percentile)
- Below average user sentiment (1st percentile)1st %ile
- Below average build (14th percentile)14th %ile
- Below average af (15th percentile)15th %ile
Pricing
BM Premium 420mm Lens 420-800mm offers 4.1x better value for money
Verdict
Scores 88 overall, wins 9 of 9 usage categories and 9 of 21 specs.
