Thypoch Simera 21mm F1.4 21mm
The f/1.4 maximum aperture on a 21mm full-frame lens delivers strong low-light performance and shallow depth of field control rare for this focal length. Its 0.23m close-focus distance and 14-blade de-clicked aperture enable dramatic wide-angle close-ups with smooth bokeh, housed in a compact 428g all-metal body. This lens is best for Leica M-mount photographers who want a fast, ultra-wide prime for astrophotography, environmental portraits, and cinematic street work.
Focal length 21mm
Aperture f/1.4
Mount Leica M
stabilization Yes
Weight 428 g
af type manual focus
lens type wide-angle
55 Overall Score
Price $999
Snapshot
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Wide-angle |
| Focal Length Min | 21 |
| Focal Length Max | 21 |
| Elements | 13 |
| Groups | 11 |
Aperture
| Max Aperture | f/1.4 |
| Min Aperture | f/1.4 |
| Constant | Yes |
| Diaphragm Blades | 14 |
Build
| Mount | Leica M |
| Format | full-frame |
| Weight | 0.4 kg / 0.9 lbs |
AF & Stabilization
| AF Type | manual focus |
| Stabilization | Yes |
Focus
| Min Focus Distance | 230 |
vs Competition
| Spec | Thypoch Simera 21mm F1.4 21mm | 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 | 21mm | 28-300mm | 18-50mm | 17-28mm | 12-35mm | 18-135mm |
| Max Aperture | f/1.4 | f/4 | f/2.8 | f/2.8 | f/2.8 | f/3.5 |
| Mount | Leica M | Sony E | Sony E | Nikon Z | Micro Four Thirds | Sony E |
| Stabilization | true | true | false | false | true | true |
| Weather Sealed | false | true | true | true | true | false |
| Weight (g) | 428 | 590 | 290 | 450 | 306 | 326 |
| AF Type | manual focus | VXD linear motor | stepping motor | Stepping Motor | Autofocus | Linear motor |
| Lens Type | wide-angle | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Thypoch Simera 21mm F1.4 21mm | 13.3 | 98.9 | 46.8 | 80.6 | 58.8 | 96.4 | 33.6 | 40.8 | 82.4 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 98 | 77.9 | 65.1 | 85.8 | 96.7 | 66 | 97.7 | 55.8 | 82.4 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 86.8 | 81.8 | 86 | 91.7 | 82.2 | 83.9 | 78.6 | 89.8 | 36.8 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 86.8 | 87 | 75.2 | 85.8 | 88.2 | 83.9 | 68 | 69.8 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 81.8 | 85.4 | 51 | 86.5 | 83.9 | 80.6 | 85.5 | 96.9 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98 | 75.4 | 72.5 | 40.3 | 78.5 | 77.3 | 95.8 | 89.8 | 82.4 |
Price
Value & Pricing
From $999
Amazon 1 offer From $999
We started tracking prices for this product on Sep 4, 2026. The chart appears once we have more data.
