Sony FE 85mm f/1.4 GM vs Samyang 85mm f/1.8 ED UMC CS
Both are Sony E prime lenses. Here is what actually differs.
Pick the Sony FE 85mm f/1.4 GM if
- You need ⅔ stop more light for low light or background blur (f/1.4 vs f/1.8)
- You shoot full frame: the Samyang 85mm f/1.8 ED UMC CS is made for APS-C
- Our notes say it suits: Portraits, weddings, fashion
Pick the Samyang 85mm f/1.8 ED UMC CS if
- You want the lighter lens to carry: 504 g lighter (344 g vs 848 g)
- You shoot close-ups: it focuses down to 0.65 m vs 0.85 m
- You want bigger close-ups: 0.17× vs 0.12× maximum magnification
Spec differences
12 differences| Sony FE 85mm f/1.4 GM | Samyang 85mm f/1.8 ED UMC CS | |
|---|---|---|
| Brand |
Sony
|
Samyang
|
| Format |
Full frame
|
APS-C
|
| Max aperture |
f/1.4
⅔ stop faster
|
f/1.8
|
| Weight |
848 g
|
344 g
lighter
|
| Length |
107.5 mm
|
not listed
|
| Diameter |
89.5 mm
|
67.5 mm
slimmer
|
| Filter thread |
77 mm
|
62 mm
|
| Min focus distance |
0.85 m
|
0.65 m
closer
|
| Max magnification |
0.12×
|
0.17×
larger
|
| Optical design |
not listed
|
9 elements / 7 groups
|
| Autofocus motor |
not listed
|
Manual focus
|
| Released |
2016
|
not listed
|
4 identical specs hidden: mount, type, focal length, image stabilization. Show all
- Mount
- Sony E both
- Type
- Prime both
- Focal length
- 85mm both
- Image stabilization
- No both
Our notes
Sony FE 85mm f/1.4 GM
A G Master portrait prime for full-frame E-mount with an f/1.4 aperture. It has a dust and moisture resistant design and weighs about 848 g.
Pros
- Smooth background blur
- Sharp and well corrected
- Dust and moisture resistant design
Cons
- Heavy at about 848 g
- The GM II is lighter
Our notes
Samyang 85mm f/1.8 ED UMC CS
More comparisons

Sony FE 85mm f/1.4 GM vs Samyang AF 85mm f/1.4
fashion vs 280 g lighter
Sony FE 85mm F1.8 vs Samyang 85mm f/1.8 ED UMC CS
covers full frame vs 27 g lighter
Sony FE 85mm f/1.4 GM vs Sigma 85mm F1.4 DG DN | Art 020
Sigma 85mm F1.4 DG DN | Art 020: 223 g lighter, newer (2020)
Carl Zeiss E 85mm F1.8 vs Samyang 85mm f/1.8 ED UMC CS
covers full frame vs 108 g lighter
Sony FE 85mm f/1.4 GM vs Rokinon 85mm f/1.4 AS IF UMC
focuses closer vs 278 g lighter
Sony FE 85mm f/1.4 GM vs Samyang 85mm f/1.4 AS IF UMC
focuses closer vs 278 g lighter