BM Premium SLY500 500mm
BM Premium
35 Overall Score
vs
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
Tamron
97 Overall Score
Scores
Video Cinema
Budget
Macro
Professional
Travel
Portrait
Landscape
Street
Wildlife Sports
Specifications
| BM Premium SLY500 500mm | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm | |
|---|---|---|
| Optics | ||
| Type | telephoto | zoom |
| Focal Length Min | 500 mm | 17 mm |
| Focal Length Max | 1000 mm | 70 mm |
| Elements | 4 | 16 |
| Groups | 4 | 12 |
| Aspherical Elements | — | 3★ |
| ED Elements | 1 | 2★ |
| Coating | multi-coated | Fluorine Coating |
| Aperture | ||
| Max Aperture | f/8 | f/2.8 |
| Min Aperture | f/8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Canon RF | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 1.08 kg | 0.54 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | RXD |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 500 mm | 190 mm★ |
| Max Magnification | — | 1:4.8★ |
Pros & Cons
BM Premium SLY500 500mm
- Strong stabilization (82nd percentile)82nd %ile
- Strong versatility (72nd percentile)
- Below average optical (4th percentile)4th %ile
- Below average user sentiment (6th percentile)6th %ile
- Below average af (13th percentile)13th %ile
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
- Strong optical (91st percentile)91st %ile
- Strong versatility (90th percentile)90th %ile
- Strong bokeh (87th percentile)87th %ile
- Strong macro (86th percentile)86th %ile
Pricing
BM Premium SLY500 500mm0.352score per dollar
vs
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm0.162score per dollar
BM Premium SLY500 500mm offers 2.2x better value for money
Verdict
Winner: Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
Scores 97 overall, wins 9 of 9 usage categories and 6 of 21 specs.
