Big Mike's SLY500 500mm
Big Mike's
37 Overall Score
vs
Viltrox AF 20mm F2.8 FE 20mm
Viltrox
87 Overall Score
What Buyers Say
Big Mike's SLY500 500mm
62 out of 100 low confidence 8 reviews
This budget telephoto lens receives mixed reviews. Many users praise its value for the price, noting clear focus and decent image quality for occasional use like moon photography. However, several verified buyers report issues with soft focus, dust contamination, and poor build quality, especially with the 2x teleconverter. It is best suited for those with realistic expectations who are willing to use a tripod and manual focus.
Pros
- Great value for the price
- Clear focus for occasional use
- Decent image quality on tripod
- Good for moon and eclipse photography
- Solid adapter and converter machining
Cons
- Soft focus on some units
- Dust contamination from 2x teleconverter
- Requires lots of light (f/8 max aperture)
- No image stabilization
- Adapter lacks back cover
Value for money 5
Image quality 6
Focus performance 4
Build quality 4
Light requirements 3
Dust contamination 2
Viltrox AF 20mm F2.8 FE 20mm
No customer feedback yet
Scores
Street
Macro
Portrait
Budget
Video Cinema
Professional
Landscape
Wildlife Sports
Travel
Specifications
| Big Mike's SLY500 500mm | Viltrox AF 20mm F2.8 FE 20mm | |
|---|---|---|
| Optics | ||
| Type | telephoto | wide-angle |
| Focal Length Min | 500 mm | 20 mm |
| Focal Length Max | 1000 mm | 20 mm |
| Elements | — | 10 |
| Groups | — | 8 |
| Aspherical Elements | — | 2★ |
| ED Elements | — | 2★ |
| Coating | multi-coated | multi-layer nano-MC coating |
| Aperture | ||
| Max Aperture | f/8 | f/2.8 |
| Min Aperture | f/8 | f/2.8 |
| Constant | ✓★ | — |
| Diaphragm Blades | — | 7★ |
| Build | ||
| Mount | T Mount | Sony E |
| Format | — | full-frame★ |
| Weight | 1.16 kg | 0.16 kg★ |
| Filter Thread | 67 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | manual focus only | STM★ |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 500 mm | 20 mm★ |
| Max Magnification | — | 0.17X★ |
Pros & Cons
Big Mike's SLY500 500mm
- Strong stabilization (81st percentile)81st %ile
- Strong versatility (72nd percentile)
- Below average user sentiment (6th percentile)6th %ile
- Below average af (14th percentile)14th %ile
- Below average build (15th percentile)15th %ile
Viltrox AF 20mm F2.8 FE 20mm
- Strong macro (91st percentile)91st %ile
- Strong build (89th percentile)89th %ile
- Strong aperture (87th percentile)87th %ile
- Strong social proof (86th percentile)86th %ile
- Below average versatility (34th percentile)
Verdict
Winner: Viltrox AF 20mm F2.8 FE 20mm
Scores 87 overall, wins 9 of 9 usage categories and 8 of 20 specs.