Artra Lab Lunaelumen-R 50mm f/1.1 50mm
The f/1.1 maximum aperture and 11-blade diaphragm deliver extreme shallow depth of field and smooth bokeh, aided by a Low-Reflective Multilayer Coating to reduce ghosting. Weighing just 396g with a 35cm minimum focus distance, this manual-focus prime remains portable for full-frame Canon RF shooters. Best for portrait and macro photographers who prioritize ultra-fast aperture control and deliberate manual focusing over autofocus speed.
Snapshot
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
- Q1 2026100/100
All buyers in Q1 2026 praised this lens for its sharpness, fast autofocus, and low-light performance, with no negative feedback.
- Image quality and sharpness are excellent, especially wide open.
- Autofocus is very fast and reliable, particularly with Sony A7R5.
- Great for video use, with stable zoom and beautiful results.
- Works well in low light, described as a great f2.8 zoom.
- Q4 202598/100
Buyers praised the lens for sharpness, autofocus, and build quality, calling it an excellent upgrade from alternatives.
- Sharpness and image quality are exceptional.
- Fast and reliable autofocus performance.
- Excellent build quality and confidence inspiring.
- Quick delivery and smooth transaction from B&H Photo.
Based on 8 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 50 |
| Focal Length Max | 50 |
| Elements | 8 |
| Groups | 6 |
| Coating | Low-Reflective Multilayer Coating |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/1.1 |
| Constant | No |
| Diaphragm Blades | 11 |
Build
| Mount | Canon RF |
| Format | full-frame |
| Weight | 0.4 kg / 0.9 lbs |
| Filter Thread | 52 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 350 |
vs Competition
| Spec | Artra Lab Lunaelumen-R 50mm f/1.1 50mm | 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 | 50mm | 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 | Canon RF | 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) | 396 | 590 | 290 | 450 | 306 | 326 |
| AF Type | manual focus only | 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 | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Artra Lab Lunaelumen-R 50mm f/1.1 50mm | 13.3 | 42.9 | 65 | 66.6 | 44.6 | 40.6 | 91.2 | 33.6 | 98.6 | 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 | 91.2 | 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 | 80.9 | 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 | 91.2 | 68 | 69.1 | 36.8 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 82.1 | 85.4 | 51 | 86.5 | 84.2 | 63.7 | 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 | 44.7 | 95.8 | 89.6 | 82.4 |
