Ultimaxx 420-800mm

★★★★☆ 3.5 (44)

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.

Focal length 420-800mm
Aperture f/16
Mount T-Mount
Weight 520 g
af type manual focus only
lens type zoom
Ultimaxx 420-800mm lens
22 Overall Score

No current retailer price

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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

Exclusive

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

Owner sentiment has cooled since launch
40/100Our AI sentiment readmedium confidence · 10 sources · Oct 2026
1★2★3★4★5★Q1 '21: 3.0★ · 1 reviewQ2 '21: 5.0★ · 1 reviewQ4 '22: 4.0★ · 1 reviewQ3 '23: 3.3★ · 4 reviewsQ4 '23: 1.0★ · 1 reviewQ4 '24: 2.5★ · 2 reviews111412Q1 '21Q2 '21Q4 '22Q3 '23Q4 '23Q4 '24
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 10 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

AF 14.8
Bokeh 31.4
Build 47.5
Macro 94.5
Optical 3.9
Aperture 44.7
User Sentiment 0.9
Versatility 69.2
Social Proof 38.7
Stabilization 34.4

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 Sony E PZ 16-50mm f/3.5-5.6 OSS Canon EF-M 15-45mm f/3.5-6.3 IS STM Panasonic LUMIX S S-R2060
Focal Length 420-800mm 28-300mm 18-55mm 16-50mm 15-45mm 20-60mm
Max Aperture f/16 f/4 f/3.5 f/3.5 f/3.5 f/3.5
Mount T-Mount Sony E Nikon F Sony E Canon EF-M L-Mount
Stabilization false true true true true false
Weather Sealed false true false true false true
Weight (g) 520 590 205 107 463 350
AF Type manual focus only VXD linear motor pulse stepping motor Autofocus STM stepping motor
Lens Type zoom zoom zoom zoom zoom zoom
Compare Compare Compare Compare Compare
Product AFBokehBuildMacroOpticalApertureUser SentimentVersatilitySocial ProofStabilization
Ultimaxx 420-800mm 14.831.447.594.53.944.70.969.238.734.4
Tamron Di III VC 28-300mm f/4-7.1 VXD Compare 97.783.763.183.296.370.992.397.950.779.4
Nikon NIKKOR 20059 Compare 84.881.483.795.454.682.865.782.986.292.3
Sony E PZ 16-50mm f/3.5-5.6 OSS Compare 53.981.49841.466.682.865.783.58192.3
Canon EF-M 15-45mm f/3.5-6.3 IS STM Compare 84.881.456.796.445.982.8081.973.590.1
Panasonic LUMIX S S-R2060 Compare 84.889.280.365.17882.8081.972.334.4

Price

Value & Pricing

Price History

$113 $114 $115 $116 $117 Aug 14Oct 26 $115

Usage Scores

Macro (41.5)Overall (22)Budget (25.7)Street (18.9)Travel (23.4)Portrait (24.8)Landscape (18.1)Professional (21)Video Cinema (20.8)Wildlife Sports (17.5)

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

Other Configurations1

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