Rokinon CAF20-NEX

Rokinon CAF20-NEX

Rokinon
36 Overall Score
vs
Sigma Art 17-40mm f/1.8 DC

Sigma Art 17-40mm f/1.8 DC

Sigma
96 Overall Score

What Buyers Say

Rokinon CAF20-NEX

No customer feedback yet

Sigma Art 17-40mm f/1.8 DC

95 out of 100 high confidence 36 reviews

The Sigma 17-40mm f/1.8 DC DN Art lens is overwhelmingly praised for its exceptional image quality, fast constant aperture, and compact internal zoom design. Users highlight its sharpness, lightweight build, and excellent autofocus performance, especially on crop-sensor mirrorless cameras like the Canon R7 and Fujifilm bodies. A few questions about compatibility with specific cameras and features like weather sealing and aperture ring are noted, but the overall sentiment is extremely positive.

Pros
  • Exceptional image quality
  • Fast constant f/1.8 aperture
  • Compact internal zoom design
  • Lightweight build
  • Sharp and bright photos
Cons
  • No weather sealing mentioned
  • No manual aperture ring on some mounts
  • Compatibility questions with full-frame cameras
  • Expensive for some buyers
👍 Image quality 8
👍 Aperture 7
👍 Build quality 6
👍 Autofocus 4
👍 Value for money 4
🤔 Compatibility 12

Scores

Portrait
Rokinon
54
Sigma
93
Video Cinema
Rokinon
37
Sigma
89
Professional
Rokinon
31
Sigma
89
Budget
Rokinon
40
Sigma
87
Macro
Rokinon
16
Sigma
82
Travel
Rokinon
20
Sigma
81
Street
Rokinon
40
Sigma
79
Landscape
Rokinon
18
Sigma
79
Wildlife Sports
Rokinon
28
Sigma
68

Specifications

Rokinon CAF20-NEXSigma Art 17-40mm f/1.8 DC
Optics
Type—zoom
Focal Length Min20 mm17 mm
Focal Length Max20 mm40 mm
Elements—17
Groups—11
Aspherical Elements—4★
ED Elements—4★
Coating—Super Multi-Layer Coating
Aperture
Max Aperture—f/1.8
Min Aperturef/2f/1.8
Constant—✓★
Diaphragm Blades—11★
Build
Mount—Fujifilm X
Format—APS-C★
Weather Sealed—✓★
Weight—0.54 kg★
Filter Thread—67 mm
AF & Stabilization
AF Type—HLA (High-response Linear Actuator)
Stabilization—✗
Focus
Min Focus Distance—280 mm★
Max Magnification—1:4.8★

Pros & Cons

Rokinon CAF20-NEX

  • Strong aperture (71st percentile)
  • Strong bokeh (70th percentile)
  • Below average macro (12th percentile)12th %ile
  • Below average optical (18th percentile)18th %ile
  • Below average build (29th percentile)
  • Below average versatility (33rd percentile)

Sigma Art 17-40mm f/1.8 DC

  • Strong user sentiment (98th percentile)98th %ile
  • Strong bokeh (97th percentile)97th %ile
  • Strong optical (97th percentile)97th %ile
  • Strong aperture (95th percentile)95th %ile
  • Below average stabilization (34th percentile)

Pricing

Rokinon CAF20-NEX

No current pricing available

Sigma Art 17-40mm f/1.8 DC

Verdict

★ Winner: Sigma Art 17-40mm f/1.8 DC

Scores 96 overall, wins 9 of 9 usage categories and 9 of 21 specs.

Sigma Art 17-40mm f/1.8 DC Better at:

MacroBudgetStreetTravelPortraitLandscapeProfessionalVideo CinemaWildlife Sports

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