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Compare Samyang 50mm F1.4 AS UMC vs Samyang AF 45mm F1.8

Construction

Aperture Blades
8 blades
9 blades
Form Factor
Normal Prime Lens
Normal 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
Material
Composite
Motor
Linear Motor
Optical Formula | Elements
9 elements
7 elements
Optical Formula | Groups
6 groups
6 groups
Optical Formula | Special Glass
1 hybrid + 1 aspherical element, Ultra Multi Coating groups
1 ED + 2 aspherical elements, Ultra Multi Coating groups

Dimensions

Filter Diameter
77 mm / 3.03 in
49 mm / 1.93 in
Size | Diameter
82 mm / 3.23 in
62 mm / 2.44 in
Size | Length
75 mm / 2.95 in
56 mm / 2.20 in
Weight
535 g / 18.90 oz
162 g / 5.72 oz

Function

Angle Of View
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
51.4° Diagonal | 43.6° Horizontal | 29.9° Vertical
Aperture
f/1.4 ~ f/22
f/1.8 ~ f/22
Autofocus
No
Yes
Focal Length
50 mm
45 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
No

Performance

Max Magnification
0.12x
Min Focus Distance
450 mm / 17.72 in
450 mm / 17.72 in

Production

Accessory
Lens hood included
Lens hood included
Debut
2015-09-21
2019-05-13
Made In
Korea

Reviews

Neofiliac score
59%
59%
Pros
  • Bright maximum aperture
  • Beautiful rendering
  • Light and compact
  • Fast autofocus
  • Quite sharp
Cons
  • Lacks weather sealing
  • Not Samyang's highest grade of build
  • Lacks weather sealing

Price

Offers (incl. referral links)
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