50–120 Sigma 50-120mm F2.8 DC OS
The Sigma 50-120mm F2.8 DC OS is a zoom lens for Sony E-mount (APS-C) that covers 50-120 mm at f/2.8, weighs 390 g and focuses as close as 0.23 m at 50 mm, 0.55 m at 120 mm.
- f/2.8widest aperture
- 390 gweight
- 51bodies it fits
Bodies it fits
51 bodies- Fits
APS-C bodies
- Sony FX30
- Sony NEX-3
- Sony NEX-3N
- Sony NEX-5
- Sony NEX-5N
- Sony NEX-5R
- Sony NEX-5T
- Sony NEX-6
- Sony NEX-7
- Sony NEX-C3
- Sony NEX-F3
- Sony VLOGCAM ZV-E10
- Sony VLOGCAM ZV-E10 II
- Sony a3000
- Sony a5000
- Sony a5100
- Sony a6000
- Sony a6100
- Sony a6100A
- Sony a6300
- Sony a6400
- Sony a6400A
- Sony a6500
- Sony a6600
- Sony a6700
- Crops
Full frame bodies
It mounts, but covers only a APS-C frame: the middle of their Full frame sensor.
- Sony FX2
- Sony FX3
- Sony VLOGCAM ZV-E1
- Sony a1
- Sony a1 II
- Sony a7
- Sony a7 II
- Sony a7 III
- Sony a7 IV
- Sony a7 V
- Sony a7C
- Sony a7C II
- Sony a7CR
- Sony a7R II
- Sony a7R III
- Sony a7R IIIA
- Sony a7R IV
- Sony a7R IVA
- Sony a7R V
- Sony a7R VI
- Sony a7S
- Sony a7S II
- Sony a7S III
- Sony a9
- Sony a9 II
- Sony a9 III
Specifications
- Focal length
- 50-120 mm
- Widest aperture
- f/2.8
- Closest focus
- 0.23 m at 50 mm, 0.55 m at 120 mm1
- Maximum magnification
- 0.333x at 50 mm, 0.213x at 120 mm1
- Stabilization
- Yes
- Mount
- Sony E-mount1
- Covers
- APS-C
- Type
- Zoom
- Weight
- 390 g1
- Length
- 99 mm1
- Diameter
- 66.8 mm1
- Filter thread
- 55 mm1
- Elements
- 181
- Groups
- 131
- Aperture blades
- 111
- Hood
- LH585-011
Sources
- SIGMA lens specifications (sigma-global.com), checked Oct 15, 2026
Worked out by code, not stated by a source
- Focal length and widest aperture as the lens's own name states them.
- Read from the lens name: each maker marks the sensor size a lens covers (Sony FE/E, Canon RF/RF-S, Nikon DX, Tamron Di III/Di III-A, Sigma DG/DC); every Fujifilm X lens is APS-C and every Micro Four Thirds lens is Four Thirds.
- Read from the lens name: Sony marks optically stabilized lenses OSS, Canon IS, Nikon VR, Fujifilm OIS, Panasonic O.I.S., Tamron VC and Sigma OS; a lens from these makers without the mark has no optical stabilization.
- Prime or zoom, read from the focal length in the lens name.
Each value is checked automatically against the source it links, on the date shown. How we build these pages
† The makers' own tables, row by row, with labels in our plain words (translated where the maker's page isn't in English); each row's numbers are checked against the page it links.
Full specifications†
Show all 12 rows
| Full specifications | Sigma 50-120mm F2.8 DC OS1 |
|---|---|
| Lens mount | Sony E-mount |
| Sensor format | APS-C [DC] |
| Lens construction | 18 elements in 13 groups (1 FLD, 3 SLD, 4 aspherical elements) |
| Angle of view | 31.7°-13.5° (Sony E-mount) |
| Diaphragm blades | 11 (rounded diaphragm) |
| Minimum aperture | F22 |
| Minimum focusing distance | 23cm(W) - 55cm(T) / 9.1in.(W) - 21.7in.(T) |
| Maximum magnification ratio | 1:3(W) - 1:4.7(T) |
| Filter size | φ55mm |
| Dimensions | φ66.8mm x 99.0mm / φ2.6in. x 3.9in. (Sony E-mount) |
| Weight | 390g / 13.8oz. (Sony E-mount) |
| Edition number | C026 |