Sirui Astra Series T1.8 1.33x 50mm Full-Frame Anamorphic 50mm
The autofocus-capable 1.33x anamorphic design covers full-frame with a 44mm image circle and a fast T1.8 aperture, delivering a 2.4:1 widescreen ratio without cropping. Neutral streak flares and oval bokeh provide a natural cinematic look, while selectable manual/autofocus and a light 635g body enhance on-set adaptability. Best for Sony E-mount filmmakers needing dependable autofocus for portrait and narrative work on gimbals, where the close 1.6-foot minimum focus distance adds creative framing.
Overzicht
De feiten
Performance
Specifications
Full Specifications
Optics
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 18 |
| Groups | 13 |
Aperture
| Diaphragm Blades | 11 |
Build
| Mount | L-Mount |
| Format | Full-Frame (44 mm Image Circle) |
| Weight | 0.6 kg / 1.4 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | No |
Focus
| Min Focus Distance | 500 |
| Max Magnification | 1:7.2 |
vs Competition
| Spec | Sirui Astra Series T1.8 1.33x 50mm Full-Frame Anamorphic 50mm | 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 Leica DG Vario-Elmarit H-ES12035 |
|---|---|---|---|---|---|---|
| Focal Length | 50mm | 18-50mm | 17-70mm | 17-28mm | 18-135mm | 12-35mm |
| Max Aperture | - | 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) | 635 | 290 | 544 | 450 | 326 | 306 |
| AF Type | Autofocus | stepping motor | RXD | Stepping Motor | Linear motor | Autofocus |
| Lens Type | - | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Stabilization |
|---|---|---|---|---|---|---|---|---|
| Sirui Astra Series T1.8 1.33x 50mm Full-Frame Anamorphic 50mm | 53.4 | 84.8 | 46 | 57 | 73.2 | 65.6 | 33.7 | 37 |
| Sigma Contemporary 18-50mm f/2.8 DC DN Compare | 87.2 | 81.3 | 86.5 | 90.9 | 82.6 | 83.4 | 78.5 | 37 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.4 | 86.4 | 69.4 | 85.1 | 91.1 | 83.4 | 89.5 | 82.7 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.2 | 86.4 | 75.8 | 85.1 | 88.4 | 83.4 | 68.1 | 37 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 98.1 | 74.7 | 73.1 | 40 | 79.1 | 76.8 | 95.8 | 82.7 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.4 | 81.3 | 85.8 | 50.6 | 86.8 | 83.4 | 80.5 | 97 |