Kase 85mm f/1.4 AF 85mm
The bright f/1.4 aperture and 13-blade diaphragm create smooth, circular bokeh, while the STM stepping motor offers near-silent autofocus suitable for video. At just 580g, the lens remains portable and adds a de-click aperture switch plus customizable Fn buttons for tactile control during shoots. It’s best for portrait and wedding photographers needing flattering subject isolation, and videographers who demand quiet focus pulls and precise aperture adjustments.
Focal length 85mm
Aperture f/16
Mount Sony E
Weight 580 g
af type STM Stepping Motor
lens type prime
45 Overall Score
Price $500
Snapshot
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 85 |
| Focal Length Max | 85 |
| Elements | 13 |
| Groups | 10 |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/1.4 |
| Constant | Yes |
| Diaphragm Blades | 13 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weight | 0.6 kg / 1.3 lbs |
| Filter Thread | 72 |
AF & Stabilization
| AF Type | STM Stepping Motor |
| Stabilization | No |
Focus
| Min Focus Distance | 700 |
vs Competition
| Spec | Kase 85mm f/1.4 AF 85mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Sigma Contemporary 18-50mm f/2.8 DC DN | 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 | 85mm | 28-300mm | 18-50mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/16 | f/4 | f/2.8 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Sony E | Sony E | Sony E | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | false | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | false |
| Weight (g) | 580 | 590 | 290 | 450 | 306 | 326 |
| AF Type | STM Stepping Motor | VXD linear motor | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Kase 85mm f/1.4 AF 85mm | 86.9 | 47.2 | 48 | 51.5 | 57.1 | 40.6 | 33.6 | 43.3 | 36.8 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 78.2 | 65.1 | 85.8 | 96.7 | 66.3 | 97.7 | 55 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.9 | 82.1 | 86.1 | 91.7 | 82.2 | 84.2 | 78.6 | 89.6 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.9 | 87.3 | 75.2 | 85.8 | 88.2 | 84.2 | 68 | 69.1 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 82.1 | 85.4 | 51 | 86.5 | 84.2 | 80.6 | 85.1 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.7 | 72.5 | 40.3 | 78.5 | 77.6 | 95.8 | 89.6 | 82.4 |
Price
Value & Pricing
From $500
