Big Mike's BM-SLY420NK-K2 420-1600mm
The 420-1600mm zoom range and constant f/8.3 aperture offer extreme reach in a lightweight 989g body, but the lens is entirely manual focus with no electronic communication. Its F-mount compatibility spans a wide range of Nikon DSLRs, making it a low-cost entry point for super-telephoto photography. This lens is best for budget-conscious Nikon DSLR users who are comfortable with manual focus and want to experiment with long-distance wildlife or sports shots in good light.
Focal length 420-1600mm
Aperture f/8.3
Mount Nikon F
stabilization Yes
Weight 989 g
af type Autofocus
lens type telephoto
41 Overall Score
Price $150
Snapshot
Pros & Cons
Pros
- Strong versatility (86th percentile) 86th
- Strong stabilization (83rd percentile) 83rd
Cons
- Below average user sentiment (4th percentile)
- Below average build (5th percentile)
- Below average optical (18th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
55/100Our AI sentiment read
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Telephoto |
| Focal Length Min | 420 |
| Focal Length Max | 1600 |
Aperture
| Max Aperture | f/8.3 |
| Constant | Yes |
Build
| Mount | Nikon F |
| Weight | 1.0 kg / 2.2 lbs |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | Yes |
Focus
| Min Focus Distance | 420 |
vs Competition
| Spec | Big Mike's BM-SLY420NK-K2 420-1600mm | Tamron Di III 28-75mm f/2.8 VXD G2 | Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR | Panasonic LUMIX S S-R2060 | Viltrox WCL-X100VI | Altura Photo NIKKOR YZ0308 |
|---|---|---|---|---|---|---|
| Focal Length | 420-1600mm | 28-75mm | 16-50mm | 20-60mm | 9mm | - |
| Max Aperture | f/8.3 | f/2.8 | f/3.5 | f/3.5 | f/2.8 | f/3.5 |
| Mount | Nikon F | Sony E | Nikon Z | L-Mount | Fujifilm X | Screw-on lens fits camera lenses with a 55mm front filter thread |
| Stabilization | true | false | true | false | true | true |
| Weather Sealed | false | true | false | true | false | false |
| Weight (g) | 989 | 540 | 135 | 350 | 130 | 320 |
| AF Type | Autofocus | VXD | Stepping Motor | stepping motor | Autofocus | STM |
| Lens Type | telephoto | zoom | zoom | zoom | wide-angle | wide-angle |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Big Mike's BM-SLY420NK-K2 420-1600mm | 54.6 | 53.9 | 5 | 60.7 | 18.4 | 56 | 3.6 | 86 | 58.9 | 83.2 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.6 | 88.1 | 67.3 | 87.3 | 87.8 | 85.8 | 80.3 | 78.2 | 83 | 38 |
| Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR Compare | 87 | 77.8 | 91.8 | 42.4 | 71.5 | 79.9 | 0 | 82.9 | 73.6 | 94.9 |
| Panasonic LUMIX S S-R2060 Compare | 87 | 86.1 | 80.6 | 66.2 | 76.4 | 79.9 | 0 | 81.5 | 64.7 | 38 |
| Viltrox WCL-X100VI Compare | 54.6 | 83.5 | 92.7 | 99.2 | 3.6 | 85.8 | 63.3 | 33.6 | 87.8 | 83.2 |
| Altura Photo NIKKOR YZ0308 Compare | 87 | 77.8 | 71.2 | 96.6 | 40.4 | 79.9 | 0 | 33.6 | 67.5 | 83.2 |
Price
Value & Pricing
From $150
Amazon 1 offer From $150
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
