Site Title

Compare Samyang 50mm F1.4 AS UMC vs Samyang AF 18mm F2.8

Reviews

Neo score
59%
59%
Pros
  • Bright maximum aperture
  • Beautiful rendering
  • Light and compact
  • Fast autofocus
  • High contrast
  • Good sharpness
Cons
  • Lacks weather sealing
  • Not Samyang's highest grade of build
  • Low maximum magnification
  • Lacks weather sealing
  • Focus breathing
  • Strong vignetting wide open
  • Full plastic construction

Price

Offers (incl. referral links)

Construction

Aperture Blades
8 blades
7 blades
Form Factor
Normal Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-mount, Nikon F-mount, Pentax K-mount, Sony A-mount, Sony E-mount
Sony E-mount
Motor
Stepper motor
Optical Formula | Elements
9 elements
9 elements
Optical Formula | Groups
6 groups
8 groups
Optical Formula | Special Glass
1 hybrid + 1 aspherical element, Ultra Multi Coating groups
2 HR, 3 aspherical, 3 ED elements + UMC coating groups

Dimensions

Filter Diameter
77 mm / 3.03 in
58 mm / 2.28 in
Size | Diameter
82 mm / 3.23 in
64 mm / 2.52 in
Size | Length
75 mm / 2.95 in
61 mm / 2.40 in
Weight
535 g / 18.90 oz
145 g / 5.12 oz

Function

Angle Of View
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
Aperture
f/1.4 ~ f/22
f/2.8 ~ f/22
Autofocus
No
Yes
Focal Length
50 mm
18 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
No

Performance

Max Magnification
0.09x
Min Focus Distance
450 mm / 17.72 in
250 mm / 9.84 in

Production

Accessory
Lens hood included
Debut
2015-09-21
2019-08-29
Made In
Korea
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