Bower SLY1620OD
Its f/2.0 maximum aperture and 13-element optical design with two aspherical lenses deliver sharp images with controlled aberrations on the Four Thirds system. The 32mm equivalent focal length and multi-coated optics provide a natural perspective with reduced ghosting, making it a solid manual-focus prime for its class. This lens is best for portrait and close-up photographers on the Four Thirds mount who prioritize a fast aperture and precise manual control over autofocus convenience.
Focal length 16mm
Aperture f/2
Mount Four Thirds
Weight 975 g
af type manual focus only
lens type prime
50 Overall Score
Price CA$652
Snapshot
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 16 |
| Focal Length Max | 16 |
| Elements | 13 |
| Groups | 11 |
| Aspherical Elements | 2 |
| Coating | multi coated |
Aperture
| Max Aperture | f/2 |
| Min Aperture | f/22 |
| Constant | Yes |
Build
| Mount | Four Thirds |
| Format | Four Thirds |
| Weight | 1.0 kg / 2.1 lbs |
| Filter Thread | 77 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 198 |
vs Competition
| Spec | Bower SLY1620OD | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Sigma Contemporary 12mm f/1.4 DC Contemporary | Nikon NIKKOR Z 17-28mm f/2.8 | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | 16mm | 17-70mm | 12mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/2 | f/2.8 | f/1.4 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Four Thirds | Sony E | Canon RF | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | false |
| Weight (g) | 975 | 544 | 225 | 450 | 306 | 326 |
| AF Type | manual focus only | RXD | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | prime | zoom | prime | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Bower SLY1620OD | 12.8 | 87.5 | 18.7 | 84.5 | 75.6 | 89.2 | 33.8 | 36.8 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.5 | 85.7 | 69.4 | 85.1 | 91.3 | 82.5 | 89.6 | 82.6 |
| Sigma Contemporary 12mm f/1.4 DC Contemporary Compare | 87.1 | 96.5 | 91 | 86.6 | 88.5 | 96.2 | 33.8 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.1 | 85.7 | 76 | 85.1 | 88.5 | 82.5 | 68.3 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.5 | 80.5 | 86 | 50.8 | 86.7 | 82.5 | 80.6 | 97 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98.1 | 73.8 | 73.3 | 40.3 | 78.9 | 75.8 | 95.9 | 82.6 |
Price
Value & Pricing
From CA$652
B&H Photo 1 offer From CA$652
We started tracking prices for this product on Jun 6, 2026. The chart appears once we have more data.
