Rokinon Reflex Reflex 300mm f/6.3 ED UMC CS 300mm
At just 318g, its reflex optical design delivers a 450mm-equivalent focal length on Fujifilm X-mount cameras, offering extreme telephoto reach without the bulk. The fixed f/6.3 aperture and catadioptric optics produce signature donut-shaped bokeh, while the manual focus ring provides precise control for deliberate framing. This lens is best for portrait and wildlife photographers who prioritize a lightweight kit and distinctive bokeh over autofocus speed or image stabilization.
Snapshot
Pros & Cons
Pros
- Strong build (69th percentile) 69th
Cons
- Below average user sentiment (9th percentile)
- Below average af (15th percentile)
- Below average social proof (18th percentile)
- Below average versatility (34th percentile)
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.
Based on 2 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | telephoto |
| Focal Length Min | 300 |
| Focal Length Max | 300 |
| Elements | 9 |
| Groups | 9 |
| ED Elements | 1 |
| Coating | UMC |
Aperture
| Max Aperture | 6.3 |
| Min Aperture | 6.3 |
| Constant | Yes |
Build
| Mount | Fujifilm X |
| Format | APS-C |
| Weight | 0.3 kg / 0.7 lbs |
| Filter Thread | 58 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 900 |
vs Competition
| Spec | Rokinon Reflex Reflex 300mm f/6.3 ED UMC CS 300mm | Sigma Contemporary 16-300mm f/3.5-6.7 DC OS | Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD | Nikon Nikkor 2166 | Panasonic LUMIX S S-R28200 | Canon EF-S 18-135mm f/3.5-5.6 IS USM |
|---|---|---|---|---|---|---|
| Focal Length | 300mm | 16-300mm | 18-300mm | 55-200mm | 28-200mm | 18-135mm |
| Max Aperture | 6.3 | f/3.5 | f/3.5 | f/4 | f/4 | f/3.5 |
| Mount | Fujifilm X | Sony E | Fuji X | Nikon F | L-Mount | Canon EF-S |
| Stabilization | false | true | true | true | true | true |
| Weather Sealed | false | true | false | false | true | false |
| Weight (g) | 318 | 615 | 92 | 255 | 413 | 515 |
| AF Type | manual focus only | HLA | VXD linear motor | Silent Wave Motor | Autofocus | STM |
| Lens Type | telephoto | zoom | zoom | telephoto | macro | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | Af | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Rokinon Reflex Reflex 300mm f/6.3 ED UMC CS 300mm | 14.6 | 62.9 | 68.9 | 38.6 | 49.9 | 63.2 | 9.2 | 34.1 | 18.3 | 35.9 |
| Sigma Contemporary 16-300mm f/3.5-6.7 DC OS Compare | 54.9 | 84.6 | 58.3 | 85.9 | 98.9 | 77.5 | 0 | 99.6 | 78 | 99 |
| Tamron Di III 18-300mm f/3.5-6.3 Di III-A VC VXD Compare | 98.2 | 75.5 | 96.4 | 87.8 | 74.3 | 77.5 | 30.3 | 99.2 | 83.1 | 81.1 |
| Nikon Nikkor 2166 Compare | 54.9 | 70.3 | 76.8 | 81.2 | 66.4 | 71.8 | 91.7 | 85.3 | 83.1 | 92.5 |
| Panasonic LUMIX S S-R28200 Compare | 54.9 | 78.4 | 73.9 | 70.8 | 91.2 | 71.8 | 0 | 95.6 | 62.6 | 99.4 |
| Canon EF-S 18-135mm f/3.5-5.6 IS USM Compare | 86.6 | 75.5 | 46.6 | 33.2 | 79.8 | 77.5 | 0 | 96 | 78 | 92.5 |
Price
Value & Pricing
Amazon 1 offers From $299
Price History
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
