What item is right for you?
Ask our Experts! 800.606.6969 Live Chat

Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Zoom Lens (Sony Mount) USA

B&H # SI120400SQ MFR # 72A205

Availability Details

This item has been discontinued by the manufacturer and is no longer available.

Product Highlights
  • Full Frame & APS-C Compatibility
  • Hyper-Sonic Focus Motor
  • In-Lens Optical Stabilization
  • Includes Lens Hood
  • Removable Tripod Collar

The 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Zoom Lens from Sigma is a telephoto zoom lens for use with Sony DSLR cameras. The lens features built-in Optical Stabilization (OS) for sharper photos, and a Hyper-Sonic Focus Motor (HSM) for quick and quiet autofocus.

Its optical formula is highlighted by three Special Low Dispersion (SLD) glass elements, which serve to correct color and preserve sharpness throughout the entire 3.3x zoom range of the lens. Its rear focusing system corrects for aberration fluctuations caused by focusing.

The lens, which is only eight inches in length and weights a mere 3.9 pounds, ships with a lens hood, a removable tripod collar, front and rear caps, and a carrying case. While it is not a true macro lens, its innate close focusing capability makes it a great use for capturing smaller objects including flowers -- without having to change to a dedicated macro lens.

Because most Sony cameras feature in-body image stabilization, the lens provides you with the option of disabling the in-lens stabilization during use -- giving you the flexibility to use the image stabilization of your choice: in-body or in-lens. Owners of legacy bodies that do not have stabilization will find this option especially useful. Of course, you can disable the stabilization feature in both the lens and the body for those times when it is appropriate to do so, such as when you are using a tripod.

Designed for use with full frame digital SLR cameras. May also be used with smaller APS-C size sensors with a corresponding effective increase in equivalent field of view to about 180-600mm with most cameras
Offers Sigma's OS System (Optical Stabilization) allowing handheld photography even in low-light situations
HSM (Hyper-Sonic Motor) ensures a quiet and high-speed auto focus
Minimum focusing distance of 59" with a maximum magnification of 1:4.2
Compact lens weighs only 3.9 pounds and is a mere 8" in length
A lens hood, tripod socket (TS-31), front & rear lens caps, and carrying case are included with the lens
Focal Length 120 - 400mm
Aperture Maximum: f/4.5 - 5.6
Minimum: f/22
Camera Mount Type Sony Alpha, Minolta AF
Format Compatibility 35mm Film / Full-Frame Digital Sensor
DSLR (APS-C Sensor)
Angle of View 20.4° - 6.2°
Minimum Focus Distance 4.92' (1.50 m)
Magnification 0.23x
Maximum Reproduction Ratio 1:4
Elements/Groups 21/15
Diaphragm Blades 9
Image Stabilization Yes
Autofocus Yes
Tripod Collar Yes
Filter Thread 77 mm
Dimensions (DxL) Approx. 3.6 x 8.0" (9.14 x 20.32 cm)
Weight 3.86 lb (1.75 kg)
Sigma 120-400mm f/4.5-5.6 DG APO OS HSM Autofocus Zoom Lens (Sony Mount)
  • Lens Hood
  • TS-31 Tripod Socket/Collar
  • Front Cap
  • Rear Cap
  • Carrying Case
  • Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects.
  • Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects.
  • Filters & Filter Kits

    Show more >
    Hoya -  77mm UV Haze NXT HMC Filter
    • You Pay: $48.90
    Hoya -  77mm Digital Filter Kit II
    • You Pay: $149.95

    Filter Holders

    Show more >
    XUME -  77mm Lens Adapter and Filter Holder Starter Kit
    • You Pay: $53.95

    Hoods & Covers

    Flex Lens Shade -  Flex Lens Shade
    • You Pay: $39.95

    Cases & Wraps

    Show more >
    Lowepro -  Lens Case 13 x 32cm (Black)
    • You Pay: $42.99

    Lens Mount Caps

    Show more >
    Sensei -  77mm Clip-On Lens Cap
    • You Pay: $3.95

    Tripod & Support

    Show more >
    Oben -  ACM-2400 4-Section Aluminum Monopod
    • You Pay: $59.95

    Extenders, Converters & Close Up Accessories

    Vello -  Auto Extension Tube Set for Sony Alpha
    • You Pay: $79.95
    View all Accessories
    See any errors on this page? Let us know.