Ultimaxx 420-800mm
The 420-800mm focal range and included 2x converter, reaching 1600mm, stand out for extreme reach at a budget price, though the constant f/8.3 aperture and fully manual operation demand bright light. The bundled kit adds value with a tripod, filters, and close-up macro lenses, making it a complete starter package for long-distance subjects. This lens is best for hobbyists using Canon EF-mount DSLRs who want to experiment with deep-sky astrophotography or distant wildlife on a tripod without a significant investment.
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong macro (95th percentile) 95th
- Strong versatility (69th percentile) 69th
Cons
- Below average user sentiment (1st percentile)
- Below average optical (4th percentile)
- Below average af (15th percentile)
- Below average bokeh (31st 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 10 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 420 |
| Focal Length Max | 800 |
| Elements | 4 |
| Coating | Super HD Multi-Coated |
Aperture
| Max Aperture | f/16 |
| Min Aperture | f/8.3 |
| Constant | Yes |
Build
| Mount | T-Mount |
| Format | full-frame |
| Weight | 0.5 kg / 1.1 lbs |
| Filter Thread | 62 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | No |
Focus
| Min Focus Distance | 62 |
vs Competition
| Spec | Ultimaxx 420-800mm | Tamron Di III VC 28-300mm f/4-7.1 VXD | Nikon NIKKOR 20059 | Sigma Art 17-40mm f/1.8 DC | Panasonic Leica DG Vario-Elmarit H-ES12035 | Sony E 18-135mm f/3.5-5.6 OSS |
|---|---|---|---|---|---|---|
| Focal Length | 420-800mm | 28-300mm | 18-55mm | 17-40mm | 12-35mm | 18-135mm |
| Max Aperture | f/16 | f/4 | f/3.5 | f/1.8 | f/2.8 | f/3.5 |
| Mount | T-Mount | Sony E | Nikon F | Fujifilm X | Micro Four Thirds | Sony E |
| Stabilization | false | true | true | false | true | true |
| Weather Sealed | false | true | false | true | true | false |
| Weight (g) | 520 | 590 | 205 | 535 | 306 | 326 |
| AF Type | manual focus only | VXD linear motor | pulse stepping motor | HLA (High-response Linear Actuator) | Autofocus | Linear motor |
| Lens Type | zoom | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | User Sentiment | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|
| Ultimaxx 420-800mm | 14.8 | 31.4 | 47.5 | 94.5 | 3.9 | 44.7 | 0.9 | 69.2 | 38.7 | 34.4 |
| Tamron Di III VC 28-300mm f/4-7.1 VXD Compare | 97.7 | 83.6 | 63.1 | 83.1 | 96.3 | 70.9 | 92.3 | 97.9 | 50.7 | 79.4 |
| Nikon NIKKOR 20059 Compare | 84.8 | 81.4 | 83.7 | 95.3 | 54.6 | 82.8 | 65.7 | 82.9 | 86.2 | 92.3 |
| Sigma Art 17-40mm f/1.8 DC Compare | 53.9 | 97 | 67.1 | 72.2 | 96.6 | 95.3 | 98.3 | 75.8 | 94.1 | 34.4 |
| Panasonic Leica DG Vario-Elmarit H-ES12035 Compare | 53.9 | 86.6 | 83.9 | 49 | 86.2 | 88.3 | 92.3 | 80.5 | 86.2 | 96.4 |
| Sony E 18-135mm f/3.5-5.6 OSS Compare | 97.7 | 81.4 | 71 | 37.5 | 78 | 82.8 | 48 | 95.8 | 90.7 | 79.4 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
