Desiontal Telephoto 420-800mm
Its 420-800mm zoom range on a full-frame Canon EF mount provides extreme reach for distant subjects like wildlife and the moon at a very low entry cost. The fully manual focus and aperture design, combined with UMC-coated optics, forces a deliberate shooting process that builds technical skill while delivering sharp images with notable background bokeh. This lens is best for budget-conscious hobbyists wanting to experiment with super-telephoto photography on older Canon DSLRs without relying on autofocus.
Snapshot
Pros & Cons
Pros
- Strong stabilization (81st percentile) 81st
- Strong versatility (71st percentile) 71st
- Strong social proof (67th percentile) 67th
Cons
- Below average af (15th percentile)
- Below average build (21st percentile)
- Below average optical (34th percentile)
- Below average bokeh (35th 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 21 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Optics
| Type | Telephoto |
| Focal Length Min | 420 |
| Focal Length Max | 800 |
| Coating | Ultra Multi Coating |
Aperture
| Max Aperture | f/16 |
| Min Aperture | 8.3-16 |
| Constant | No |
Build
| Mount | Canon EF |
| Format | full-frame |
| Weight | 0.8 kg / 1.8 lbs |
| Filter Thread | 67 |
AF & Stabilization
| AF Type | manual focus only |
| Stabilization | Yes |
Focus
| Min Focus Distance | 800 |
vs Competition
| Spec | Desiontal Telephoto 420-800mm | Meike 50mm F1.8 Full Frame STM Auto Focus Prime | Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR | Tamron Di III 28-75mm f/2.8 VXD G2 | Canon EF-S 18-135mm f/3.5-5.6 IS USM | Sony E SELP16502 |
|---|---|---|---|---|---|---|
| Focal Length | 420-800mm | 50mm | 16-50mm | 28-75mm | 18-135mm | 16-50mm |
| Max Aperture | f/16 | f/1.8 | f/3.5 | f/2.8 | f/3.5 | f/3.5 |
| Mount | Canon EF | Panasonic Sigma L | Nikon Z | Sony E | Canon EF-S | Sony E |
| Stabilization | true | true | true | false | true | true |
| Weather Sealed | false | false | false | true | false | true |
| Weight (g) | 798 | 297 | 135 | 540 | 515 | 107 |
| AF Type | manual focus only | STM | Stepping Motor | VXD | STM | Autofocus |
| Lens Type | telephoto | prime | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| Product | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | Social Proof | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Desiontal Telephoto 420-800mm | 15.3 | 34.7 | 21 | 40.5 | 33.9 | 49.5 | 70.8 | 66.5 | 80.5 |
| Meike 50mm F1.8 Full Frame STM Auto Focus Prime Compare | 85.5 | 95.9 | 71.2 | 96.2 | 57.2 | 93 | 34 | 52.5 | 80.5 |
| Nikon NIKKOR Z DX 16-50mm f/3.5-6.3 VR Compare | 85.5 | 74.9 | 90.5 | 36.3 | 69.6 | 76.9 | 83.6 | 73.8 | 94.4 |
| Tamron Di III 28-75mm f/2.8 VXD G2 Compare | 54.8 | 86.2 | 64.4 | 85.4 | 87.2 | 83.8 | 78.4 | 91.8 | 35.6 |
| Canon EF-S 18-135mm f/3.5-5.6 IS USM Compare | 85.5 | 74.9 | 45.8 | 32.7 | 79 | 76.9 | 96.1 | 77.9 | 92.2 |
| Sony E SELP16502 Compare | 54.8 | 74.9 | 97.5 | 34.6 | 63.1 | 76.9 | 83.6 | 77.9 | 80.5 |
Price
Value & Pricing
Amazon.ca 1 offer From CA$73
We started tracking prices for this product on May 17, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
