Leica Super-APO-Summicron-SL 21mm f/2 ASPH. 21mm
A world-first apochromatic correction at 21mm pairs with an f/2 constant aperture and dual synchro drive autofocus, delivering distortion-free edge-to-edge sharpness. Its exceptionally light 95g full-frame build makes it one of the most portable ultra-wide Leica primes without sacrificing optical precision. This lens suits street and architectural photographers who need a discreet, fast 21mm for high-clarity work in tight spaces.
Panoramica
Cosa dicono i proprietari
Come è cambiata l'opinione dei proprietari nel tempo
EsclusivaIn base a quando i clienti hanno effettivamente scritto le recensioni, per vedere se gli elogi iniziali sono durati.
Basato su 3 recensioni dei clienti datate, raggruppate per trimestre solare. L'analisi per periodo è in inglese.
Le prove
Prestazioni
Scheda tecnica
Specifiche tecniche complete
Optics
| Type | Prime |
| Focal Length Min | 21 |
| Focal Length Max | 21 |
| Elements | 14 |
| Groups | 11 |
| Aspherical Elements | 3 |
Aperture
| Max Aperture | f/22 |
| Min Aperture | f/2 |
| Constant | Yes |
Build
| Mount | L-Mount |
| Format | full-frame |
| Weight | 0.8 kg / 1.7 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | Dual Synchro Drive |
| Stabilization | No |
Focus
| Min Focus Distance | 210 |
| Max Magnification | 1:5.3 |
Rispetto alla concorrenza
| Spec | Leica Super-APO-Summicron-SL 21mm f/2 ASPH. 21mm | Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sony E 18-135mm f/3.5-5.6 OSS | Panasonic LUMIX G X VARIO II H-HSA12035 |
|---|---|---|---|---|---|---|
| Focal Length | 21mm | 18-50mm | 17-70mm | 17-28mm | 18-135mm | 12-35mm |
| Max Aperture | f/22 | f/2.8 | f/2.8 | f/2.8 | f/3.5 | f/2.8 |
| Mount | L-Mount | Sony E | Sony E | Nikon Z | Sony E | Micro Four Thirds |
| Stabilization | false | false | true | false | true | true |
| Weather Sealed | false | true | true | true | false | true |
| Weight (g) | 789 | 290 | 544 | 450 | 326 | 306 |
| AF Type | Dual Synchro Drive | stepping motor | RXD | Stepping Motor | Linear motor | Linear motor |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Prodotto | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Riscontro degli utenti | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Leica Super-APO-Summicron-SL 21mm f/2 ASPH. 21mm | 53.6 | 13.1 | 24.3 | 81 | 75.7 | 20 | 33.7 | 40.5 | 36.7 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 87.2 | 81.3 | 86.6 | 90.8 | 82.6 | 83.5 | 78.6 | 89.4 | 36.7 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.6 | 86.6 | 69.6 | 84.9 | 91.1 | 83.5 | 89.5 | 85 | 82.4 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.2 | 86.6 | 76.1 | 84.9 | 88.5 | 83.5 | 68.2 | 69.4 | 36.7 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98.1 | 74.7 | 73.3 | 40.1 | 79.1 | 76.8 | 95.8 | 89.4 | 82.4 |
| Panasonic LUMIX G X VARIO II H-HSA12035 Compare | 98.1 | 81.3 | 86 | 67.3 | 86.8 | 83.5 | 80.5 | 12.9 | 96.9 |