Desiontal 420-800 420-800mm

★★★★☆ 4.1 (386)

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.

Focal length 420-800mm
Aperture f/16
Mount Sony E
stabilization Yes
Weight 821 g
af type manual focus only
lens type telephoto
Desiontal 420-800 420-800mm lens
39 Overall Score
Also available in:

Snapshot

Pros & Cons

Pros

  • Strong stabilization (83rd percentile) 83rd
  • Strong social proof (70th percentile) 70th
  • Strong versatility (69th percentile) 69th

Cons

  • Below average af (13th percentile)
  • Below average user sentiment (16th percentile)
  • Below average build (25th percentile)
  • Below average bokeh (30th percentile)

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has improved over time
72/100Our AI sentiment readlow confidence · 9 sources · May 2026
1★2★3★4★5★Q1 '20: 5.0★ · 1 reviewQ4 '22: 5.0★ · 1 reviewQ2 '23: 5.0★ · 1 reviewQ1 '24: 2.0★ · 3 reviewsQ2 '24: 5.0★ · 2 reviewsQ3 '25: 3.8★ · 5 reviewsQ4 '25: 4.6★ · 5 reviewsQ1 '26: 4.0★ · 4 reviews11132554Q1 '20Q4 '22Q2 '23Q1 '24Q2 '24Q3 '25Q4 '25Q1 '26
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews
  1. Q1 202667/1003.7★3 reviews

    Buyers gave mixed feedback: one praised the lens for moon photos and long distances, but another said it didn't fit the camera as stated.

    • Works well for moon photography and long-distance shots.
    • Does not fit the camera as advertised.
  2. Q4 202588/1004.6★5 reviews

    Buyers praised build quality and value, but noted the fully manual operation requires practice and a tripod; minor color shift at long distances was mentioned once.

    • Fully manual lens: no electronics, must hand-adjust focus/aperture; tripod recommended.
    • Excellent build quality and fit; no looseness, produces good images.
    • Good value for hobbyists but heavy; requires tripod and practice.
    • Color shift at long distances; not true to life.
  3. Q3 202560/1003.8★5 reviews

    Buyers praised the lens for astrophotography and travel use, but several found manual focusing difficult and the build quality lacking.

    • Good for astrophotography and travel due to lightweight design and versatile zoom range.
    • Manual focus is hard to use smoothly, especially for beginners.
    • Heavier than expected, with build quality concerns mentioned.
    • Affordable and decent for amateurs, but not without compromises.
  4. Q1 202433/1002.0★3 reviews

    Buyers found the lens hard to focus manually and unusable without a tripod. One unit arrived with a broken adapter. Image quality was decent for the low price.

    • Manual focusing is extremely difficult, especially for sun photography.
    • Lens is unusable without a sturdy tripod.
    • One reviewer received a lens with a broken camera adapter.
    • Decent image quality for under $100, exceeding expectations at that price.

Based on 22 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

AF 12.8
Bokeh 29.6
Build 24.9
Macro 48.1
Optical 45.2
Aperture 42.2
User Sentiment 15.8
Versatility 69.1
Social Proof 69.8
Stabilization 83.4

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 Sony E
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 420-800 420-800mm Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Nikon NIKKOR Z 17-28mm f/2.8 Sigma Contemporary 16-28mm f/2.8 DG DN Panasonic Leica DG Vario-Elmarit H-ES12060 Sony G SELP28135G.SYX
Focal Length 420-800mm 17-70mm 17-28mm 16-28mm 12-60mm 28-135mm
Max Aperture f/16 f/2.8 f/2.8 f/2.8 f/2.8 f/4
Mount Sony E Fujifilm X Nikon Z Sony E Micro Four Thirds Sony E
Stabilization true true false false true true
Weather Sealed false true true true true true
Weight (g) 821 544 450 450 320 420
AF Type manual focus only RXD Stepping Motor Stepping AF Motor linear motor SSM
Lens Type telephoto zoom zoom zoom zoom zoom
Compare Compare Compare Compare Compare
Product AFBokehBuildMacroOpticalApertureUser SentimentVersatilitySocial ProofStabilization
Desiontal 420-800 420-800mm 12.829.624.948.145.242.215.869.169.883.4
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare 53.787.469.685.99184.663.389.385.183.4
Nikon NIKKOR Z 17-28mm f/2.8 Compare 87.487.475.985.98884.690.867.368.837.8
Sigma Contemporary 16-28mm f/2.8 DG DN Compare 87.487.475.977.897.284.675.56862.737.8
Panasonic Leica DG Vario-Elmarit H-ES12060 Compare 98.187.484.651.99184.644.293.167.883.4
Sony G SELP28135G.SYX Compare 94.478.477.734.18867.163.392.455.793.4

Price

Value & Pricing

From MX$1,205 1 offer across 1 retailer
Amazon.com.mx 1 offer From MX$1,205

Price History

MX$1,100 MX$1,200 MX$1,300 MX$1,400 MX$1,500 May 25Jul 18 MX$1,205

Usage Scores

Macro (41.1)Overall (38.8)Budget (46.3)Street (31.6)Travel (36.3)Portrait (36.1)Landscape (38.9)Professional (30)Video Cinema (33.6)Wildlife Sports (33.6)

A full written review is coming soon. The specs, scores, prices and charts above are always up to date.

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