Samyang AF 45mm F1.8 Full-Frame Lens (2019)
Product Gallery
Product Overview
Samyang AF 45mm F1.8 is a full-frame, autofocus prime lens for Sony's E-mount mirrorless system. It is offers bright maximum aperture at a popular focal length in a compact, affordable package.
The AF 45mm F1.8 weighs a mere 162g and measures just 56mm long, making it easy to carry around all day. The 45mm focal length on a full-frame sensor offers a natural perspective. With a f/1.8 maximum aperture, this lens is very versatile.
In recent years, Samyang has greatly expanded its autofocus lens lineup for Sony's E-mount. Three other such lenses that share the same lightweight and compact design include the AF 18mm F2.8, AF 35mm F1.8, and AF 75mm F1.8.
Ratings
What we found**
Neofiliac score 59% (not directly comparable across industries)
Pros
- Light and compact
- Fast autofocus
- Quite sharp
Cons
- Lacks weather sealing
What external reviewers found***
External score 69% (not directly comparable across industries)
Pros
- Strong autofocus
- Dust and splash protection
- Quick, quiet focus
Cons
- No weather protection
- Lacks focus breathing
Price Comparison
Specifications
Construction
Aperture Blades
9 blades
Form Factor
Normal Prime Lens
Image Size
Full-Frame
Lens Mount
Sony E-mount
Material
Composite
Motor
Linear Motor
Optical Formula | Elements
7 elements
Optical Formula | Groups
6 groups
Optical Formula | Special Glass
1 ED + 2 aspherical elements, Ultra Multi Coating groups
Dimensions
Filter Diameter
49 mm / 1.93 in
Size | Diameter
62 mm / 2.44 in
Size | Length
56 mm / 2.20 in
Weight
162 g / 5.72 oz
Function
Angle Of View
51.4° Diagonal | 43.6° Horizontal | 29.9° Vertical
Aperture
f/1.8 ~ f/22
Autofocus
Yes
Focal Length
45 mm
Focus Type
Internal
Image Stabilization
No
Weather Resistance
No
Performance
Max Magnification
0.12x
Min Focus Distance
450 mm / 17.72 in
Production
Accessory
Lens hood included
Debut
2019-05-13
Made In
Korea
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Launch Comparison
Clear List
3rd-Party Review Videos
External Reviews
sonyalpha[1]
Reviewer score 72%The build quality of this lens is very good and is better than the 35 or 24mm. Performance are also better and close to the new Samyang 85mm F1.4 AF Samyang is really becoming a key actor for the E mount system with high quality lens at decent price and size AF was fast silent and reliable in wide focus area mode.
Find the original article here.
Pros
- Very fast aperture F1.8 and small form factor (56mm vs e.g. 70mm for the Sony A7RIII)
- Good bokeh balls wide open, efficient AF, small/light/cheap on a full frame mirrorless
- Very good results in term of Bokeh and color rendition in video
Cons
- A little bit curvature of field
- Not as good as a Sony lens
pcmag[2]
Reviewer score 66%At its closest focus, the Rokinon 45mm projects subjects onto the sensor at 1:8.3 life-size. The Sigma 45 goes to 9.5 inches for 1:4 magnification, and Tamron's 35mm F2.8 nets 1:2 results. The build matches the asking price, with a plastic-feeling barrel and no weather protection.
Find the original article here.
Pros
- Quick, quiet focus
- Strong autofocus
- Dust and splash protection
Cons
- Lacks focus breathing
- No weather protection
User Reviews
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References
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Scores are not directly comparable across industries.
These key takeaways ("pros" and "cons") and summaries are identified from third-party reviews. They may differ from the original texts.
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