Sigma AF 50-120MM F/2.8 DC OS Contemporary Lens for Sony E
Key Features
- APS-C sensor lens with a constant, bright f/2.8 maximum aperture
- Versatile 75–180mm full-frame equivalent focal length
- Rapid, precise HLA autofocus motor for tracking fast subjects
- Optical stabilization using the OS2 algorithm for steady handheld shots
- Advanced optical design with 1 FLD, 3 SLD, and 4 aspherical elements
- Weather-sealed build for dust and splash protection
- Compact, lightweight body measuring only 3.9 inches long
OVERVIEW
The Sigma 50-120mm f/2.8 DC OS Contemporary lens is an exceptionally compact, lightweight telephoto zoom designed for APS-C mirrorless cameras. Measuring just 3.9 inches and weighing less than a pound, it combines a fast f/2.8 aperture with advanced optics and stabilization, making it ideal for travel, portraiture, and everyday handheld shooting.
High-Speed Autofocus & Video Performance
Utilizes a High-Response Linear Actuator (HLA) motor for fast, precise, and quiet subject tracking.
Minimizes focus breathing, ensuring smooth focus transitions for high-quality video production.
Advanced Optical Stabilization
Features an optical stabilizer powered by the OS2 algorithm, delivering 6.5 stops of shake compensation at 50mm and 4.5 stops at 120mm.
Enables sharp handheld photography in low-light conditions and at full telephoto reach.
Premium Optical Design
Incorporates 1 FLD, 3 SLD, and 4 aspherical glass elements to eliminate optical aberrations and distortion throughout the zoom range.
An 11-blade rounded diaphragm generates smooth, natural background blur (bokeh) to isolate subjects.
Durable, Weather-Resistant Construction
Dust- and splash-resistant structure provides protection when shooting in unpredictable outdoor conditions.
Water- and oil-repellent coating on the front glass element makes cleaning effortless.
Brand
lens specification
| Lens Min. Focus Distance | 23cm(W) - 55cm(T) / 9.1in.(W) - 21.7in.(T) |
| Lens Filter Size | 55mm |
| Minimum Aperture | f/22 |
| Angle of View (diagonal) | 31.7°-13.5° |
| Maximum Aperture | f/2.8 |
| Focus Type | Autofocus |
| Mount Type | Sony E |
| Focal Length | 50-120mm |
| Weight | 390g / 13.8oz. |
| Dimensions | 66.8mm x 99.0mm / 2.6in. x 3.9in. |
| Image Stabilization | No |
| Diaphragm Blades | 11 |
| Maximum Magnification | 1:3(W) - 1:4.7(T) |
| Optical Design | 18 Elements in 13 Groups |
- Sigma 50-120mm f/2.8 DC OS Contemporary Lens (Sony E)
- Sigma Lens Hood for 50-120mm f/2.8 DC OS Contemporary Lens
- Sigma LCF-55 IV Lens Cap (55mm)
- Sigma LCR III Rear Lens Cap for Sony E
- Limited 4-Year Manufacturer Warranty
- Used Sony A7S III Digital Camera Body Only - Good
- Used Sony A7III Body Only - Good
- Sony Alpha a7 III Mirrorless Digital Camera (Body Only)
- Used Sony A9 III Body - Excellent
- Sony Alpha a1 Mirrorless Digital Camera (Body Only)
- *Open Box* Sony Alpha a9 II Mirrorless Digital Camera (Body Only)
- Sony Alpha 6100 APS-C Mirrorless Camera with 16-50mm II and 55-210mm Lenses
- Sony Alpha a6400 Mirrorless Digital Camera (Body Only)
- Sony Alpha a9 III Mirrorless Camera (Body Only)
- Sony Alpha a6100 Mirrorless Digital Camera (Body Only)
- Used Sony Alpha a7R IV Body Only - Excellent
- Used Fair Sony Alpha a9 III Mirrorless Camera (Body Only)
- Used Sony A7III Body Only - Excellent
- Used Sony Alpha a7 III Mirrorless Digital Camera - As Is *Missing Mic Door C
- Used Sony a6100 w/ 16-50mm PZ - Excellent
- Used Sony A6000 w/16-50mm 3.5-5.6 Lens (Black) - Excellent
- Used Sony A6000 Body Only (Black) - Excellent
- Used Sony a6400 Body Only - Good Condition
- Used Sony A6000 Mirrorless Camera Body Only (Sliver) - Excellent
- Used Good Sony Alpha a9 III Mirrorless Camera (Body Only) - GOOD
- Used Sony Alpha a6100 APS-C Mirrorless Digital Camera (Body Only)
- Used Sony Alpha a6400 Mirrorless Digital Camera with 16-50mm Lens - Good Con
- Used Sony Alpha a7R III Mirrorless Digital Camera - Good
- Used Sony Alpha a9 II Digital Camera (Body Only) - Good
No creators have tagged this product yet.
Articles featuring this product
Sigma Corporation Announces Four New Lenses at CP+ Camera and Photo Imaging Show
Jan 29, 2013
·
UniquePhoto
Portrait Photography: Which Sony Lens Stands Out in the Compare Beta and Why?
Aug 5, 2026
·
Unique Photo
Recommended Budget Portrait Lenses: Best Picks for Beautiful Background Blur
Aug 17, 2026
·
Unique Photo
Community questions about this gear
Ask a question
0
votes
2
answers
186
0
votes
2
answers
194
0
votes
2
answers
211
0
votes
2
answers
169
How can I test whether my Sigma 17-50mm f/2.8 is misfocusing on a Canon 70D?
Photography Stack Exchange contributor
10y ago
You may also like
Giottos Microfiber Anti-Static Cleaning Cloth 15x11 Inches
- Non-Scratching with unsewn edges
- Super absorbent with anti-static treatment
Photographic Solutions Eclipse Optic Cleaner 2 OZ.
- Optic Cleaning Fluid
- Highest purity lens cleaner
Tiffen 55mm Black Pro-Mist 1/8 Filter
- Reduces Highlights and Lowers Contrast
- Softens Wrinkles and Blemishes
DLC NF-LC1 Ultra Clarity Lens And LCD Biodegradable Cleaner 1oz
- - Ultra Clarity Lens - Biodegradable - LCD and Lens Cleaner - 3oz.
Schneider 12x15 Inch Photo Clear Microfiber Lens Cleaning Cloth
- Schneider 12×15 Inch Photo Clear Cleaning Cloth
- For camera lenses
Tiffen 55mm UV Protector Glass Filter
- - Most popular protection filters - Provides basic reduction of UV light - Available for Wide Angle
Zeiss Microfiber Cleaning Cloth
- Premium Zeiss microfiber cleaning cloth designed for safe cleaning of lenses, filters, eyeglasses, and optical surfaces
- Soft, lint-minimizing fabric helps remove dust, fingerprints, and smudges without scratching delicate coatings