Sigma 50-120mm F2.8 DC OS Contemporary Telephoto Zoom Lens for Sony E Mount - 694965

Product Details
Sigma 694965 50-120mm F2.8 DC OS Contemporary Telephoto Zoom Lens for Sony E Mount
The Sigma 694965 50-120mm F2.8 DC OS Contemporary APS-C mirrorless telephoto zoom lens for Sony E-mount combines a constant F2.8 aperture with HLA autofocus and OS2 optical stabilization. Its approximately 75-180mm full-frame-equivalent range suits portraits, events and indoor sports, while stabilization is rated at 6.5 stops at the wide end and 4.5 stops at telephoto.1 Reduced focus breathing helps preserve video framing, and an aperture ring puts exposure adjustment directly on the lens.
Key Features
Portable Telephoto Reach
Designed for mobile APS-C shooting, the compact Sony E-mount version weighs 390g.2 That keeps telephoto capability practical when you are moving between portrait compositions or covering an event.
High Contrast Across the Frame
For compositions that place the subject away from the center, the optical design targets high contrast across the frame while correcting aberrations. Its 18 elements in 13 groups include one FLD, three SLD and four aspherical elements, and each lens undergoes Sigma's proprietary MTF testing.
Telephoto Expression With Constant F2.8
For portraits, use background blur to separate the person from the scene; for product images, telephoto perspective compression creates flatter compositions. F2.8 remains available as you change focal lengths, so zooming does not force a change to the maximum aperture.
Reduced Focus Breathing for Video
When a scene calls for a change in focus, breathing reduction limits the accompanying shift in composition. That helps keep framing more consistent as attention moves between subjects during a take.
HLA Autofocus and OS2 Stabilization
Rather than driving focus through gears, the HLA system uses direct linear movement for fast response. OS2 optical stabilization works alongside autofocus to support handheld telephoto shooting.
Aperture Ring and Simplified Controls
The aperture ring offers a direct way to set exposure on the lens while you compose. Dedicated focus-mode and OS switches are omitted to keep the control layout simple.
Dust- and Splash-Resistant Design
Seals at the mount, rings and cover connections provide dust- and splash-resistant protection for outdoor shooting.3 The front element also carries a water- and oil-repellent coating to help with cleanup after shooting.
Features
390g Sony E-Mount Design
Keeps telephoto capability portable for mobile APS-C shooting.2
18 Elements in 13 Groups
Combines one FLD, three SLD and four aspherical elements for aberration correction.
Individual MTF Testing
Each lens is individually checked for optical performance.
Constant F2.8 Aperture
Enables portrait separation and expressive telephoto background blur.
Reduced Focus Breathing
Limits framing shifts when focus changes during a take.
HLA Autofocus
Delivers responsive autofocus through gear-free linear movement.
OS2: 6.5 Stops Wide / 4.5 Stops Telephoto
Adds optical shake correction at wide and telephoto settings.1
Aperture Ring
Offers hands-on exposure adjustment.
Simplified Control Layout
Leaves off dedicated focus-mode and stabilization switches.
Dust- and Splash-Resistant Sealing
Sealed connection points help protect the lens during outdoor use.3
Water- and Oil-Repellent Front Coating
Makes water and oily marks easier to clean from the front glass.
1:3 Magnification at 50mm
Focuses as close as 23cm at the wide end for small-subject detail.
Footnotes
1 Stabilization ratings are based on CIPA-guideline tests at 50mm and 120mm using APS-C mirrorless equipment.
2 Weight and compactness measurements refer to the Sony E-mount version.
3 Dust- and splash-resistant construction is not waterproof. Heavy splashing or water entering the lens may cause malfunction.
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Specifications
General
Color
Matte Black
Model
694965
Compatibility
Sony
Type
Telephoto Zoom
Maximum Reproduction Ratio
0.33x (Wide), 0.21x (Tele)
Filter Size
55mm
Lens Elements
18
Lens Format Coverage
APS-C
Lens Groups
13
Zoom Focal Length
50-120mm
Maximum Focal Length
120mm
Minimum Focal Length
50mm
Focal Length (35mm Film Equivalent)
75-180mm
Aspherical Elements
4
Maximum Aperture
f/ 2.8
Minimum Aperture
f/ 22
AF Actuator
HLA (High-Response Linear Actuator)
Minimum Focus Distance
0.75 ft. (Wide) / 1.80 ft. (Tele)
Maximum Magnification
0.33x (Wide), 0.21x (Tele)
Maximum Magnification Ratio
1:3 (Wide) - 1:4.7 (Tele)
Maximum Diameter
66.8mm
Lens Mount Compatibility
Sony E-Mount
Angle of View
31.7 degrees - 13.5 degrees
Zoom Ratio
2.4x
Image Stabilization
OS2 Optical Stabilization, 6.5 Stops (Wide), 4.5 Stops (Tele), CIPA Guidelines
Focus Type
Auto/Manual (No Switch)
Optical Design
18 Elements In 13 Groups
Aperture Blades
11 (Rounded Diaphragm)
Lens Construction
18 Elements In 13 Groups
Special Elements
1 FLD Glass, 3 SLD Glass, 4 Aspherical Elements
Dust/Water Resistant
Yes
In the Box
(1) 50-120mm F2.8 DC OS Contemporary Lens, Sony E-Mount, (1) Pouch, (1) Lens Hood LH585-01, (1) Front Cap LCF-55 IV, (1) Rear Cap LCR III
Focusing System
HLA Direct Linear Focusing
Approximate Dimensions
Diameter (in)
2.6
Length (in)
3.9
Warranty Information
Labor Warranty
4 Years Limited
Parts Warranty
4 Years Limited
Approximate Weight
Package Weight (lbs)
0.86