Rokinon (Samyang) 20mm f/1.8 ED AS UMC Lens Specifications and Measurements

SpecificationsRokinon (Samyang) 20mm f/1.8 ED AS UMC Lens
  Rokinon (Samyang) 20mm f/1.8 ED AS UMC Lens
Year Introduced2016
Mounts OnFull Frame, APS-C
Lenses / Groups13/12
Angle of View: Diagonal94.8°
Aperture Range - Wide / Long f/1.8-22
Number of Aperture Blades 7
Rounded Aperture? Y
Manufacturer Specification Weight 17.5 oz  (497g)
Actual Weight 18.7 oz  (530g)
Lens Hood Weight 0.9 oz  (25g)
In-Use Weight 19.6 oz  (555g)
Manufacturer Spec Size (DxL) 3.27 x 3.48”  (83 x 88.4mm)
Measured Size (DxL) 3.06 x 3.51”  (78 x 89.1mm)
Max Length at Full Extension 3.51”  (89.1mm)
Internal Focusing? / Extends with Focusing? Y / N
Lens Hood Size (DxL) 3.57 x 1.44”  (90.7 x 36.6mm)
Lens Length with Hood (Min-Max) 4.94 - 4.94”  (125.4 - 125.4mm)
Size of Rings: Focus / Zoom 1.5”  (38.1mm)
Filter Size 77mm  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type
Full Time Manual Focus
Focus Ring Rotation 193 °
Focus Limiter? / Focus Limiter Ranges N
Distance Scale? / Type Y / Printed
Close Focus  
Specified Min Focus Distance 7.87”  (200mm)
Tested Min Focus Distance (Wide / Long) 7.64”  (194mm)
Maximum Magnification (MM)
Tripod Ring Included? / Removable? N
Lens Hood Included / Model? Y /
Weather Sealed? / Filter Required? /
Image Stabilization? / Stops? / Tripod Sensing? N
Extender Compatible? N
Case Included? / Type? Y / Pouch
47.25" x 31.5" Subject Framing Distance 20mm = 2.52'
1200mm x 800mm Subject Framing Distance 20mm = 769mm
Review Rokinon (Samyang) 20mm f/1.8 ED AS UMC Lens
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