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Sigma 20mm F1.8 EX DG Aspherical RF vs Sony 20mm F2.8

Looking to find more information regarding these two camera lenses? Check out our side by side comparison of the Sigma 20mm F1.8 EX DG Aspherical RF vs Sony 20mm F2.8to review specs, pros and cons, and which is right for you.

Sigma 20mm F1.8 EX DG RF Top Features

  • 20mm Focal Range
  • F1.8 Max Aperture
  • Filter Thread: 82mm
  • Max Format: 35mm FF
  • Sony Alpha Mount
  • Weight: 520g.
  • Diameter: 89mm
  • Length: 90mm
  • Min Focus Distance:0.2m

Sigma 20mm F1.8 EX DG Aspherical RF

Sony 20mm F2.8 Top Features

  • 20mm Focal Range
  • F2.8 Max Aperture
  • Filter Thread: 72mm
  • Max Format:
  • Sony Alpha Mount
  • Weight: 285g.
  • Diameter: 78mm
  • Length: 54mm
  • Min Focus Distance:0.25m
  • Max Magnification:0.13x

Sony 20mm F2.8

Our Winner: Sigma 20mm F1.8 EX DG Aspherical RF over Sony 20mm F2.8

Max Aperture – Wide 1.8 vs 2.8
Max Aperture – Tele 1.8 vs 2.8
Diaphgragm Blades 9 vs 7
Aperture Ring Yes vs No
Minimum Focus Distance 0.2m vs 0.25m

Pros Of Sony 20mm F2.8 over Sigma 20mm F1.8 EX DG Aspherical RF
Weight 285g vs 520g
Diameter 78mm vs 89mm
Length 54mm vs 90mm
Filter Thread 72mm vs 82mm
Max Magnification 0.13x vs x

Cons Of Sigma 20mm F1.8 EX DG Aspherical RF and Sony 20mm F2.8
Image Stabilization No vs No
Weather Sealing No vs No

Sigma 20mm F1.8 EX DG RF vs Sony 20mm F2.8 All Features

General Sigma 20mm F1.8 EX DG RF Sony 20mm F2.8
Brand Sigma Sony
Lens Type Prime Prime
Price CHECK PRICE CHECK PRICE
Lens Type Wideangle Prime Wideangle Prime
Lens Mount Sony Alpha Sony Alpha
Max Format 35mm FF 35mm FF
Focal Range 20mm 20mm
Image Stabilization No No
Colour Black Black
Zoom Method No Zoom No Zoom
Power Zoom No No
Zoom Lock No No
Zoom Ratio 1.0X 1.0X
Aperture
Max Aperture F1.8 F2.8
Min Aperture F22.0 F22.0
Aperture Ring Yes No
Diaphragm Blades 9 7
Optics
Optical Elements 13 10
Optical Groups 11 9
Special Elements 2 aspherical elements unknown
Focusing
Min Focus Distance 0.2m 0.25m
Max Magnification unknown 0.13X
Autofocus Yes Yes
AF Motor Type unknown Screw drive from camera
Full Time Manual Yes
Focus Method Rear Rear
Distance Scale Yes Yes
DoF Scale Yes Yes
Distance Scale Yes Yes
Focus Distance Limiter Unknown Unknown
Physical Specs
Weight 520g 285g
Diameter 89mm 78mm
Length 90mm 54mm
Materials Unknown Unknown
Weather Sealing Unknown Unknown
Filter Thread 82mm 72mm
Filter Notes
Hood Supplied Yes Yes
Hood Code petal type hood petal hood SH0013
Tripod Collar No No
Optional Accessories
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