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Sigma 120-400mm F4.5-5.6 DG OS HSM Canon EF Review
Sigma 120-400mm F4.5-5.6 DG OS HSM

Main Features

  • 120-400mm Focal Range
  • F4.5 - F5.6 Max Aperture
  • Image Stabilization
  • Filter Thread: 77mm
  • Max Format: 35mm FF
  • Canon EF Mount
  • Weight: 1640g.
  • Diameter: 92mm
  • Length: 203mm
  • Min Focus Distance:1.5m
  • Max Magnification:0.24x
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Sigma 120-400mm F4.5-5.6 DG OS HSM Overview
Sigma 120-400mm F4.5-5.6 DG OS HSM is an Auto Focus (AF) Telephoto Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.

Lens Mount

Sigma 120-400mm F4.5-5.6 DG OS HSM is compatible with cameras that have Canon EF lens mount.Some of the latest released cameras with Canon EF lens mount are Canon 1D X III, Canon 6D MII and Canon 5D MIV.

Sensor Coverage

Max sensor coverage of Sigma 120-400mm F4.5-5.6 DG OS HSM is 35mm FF.

Focal Range

Sigma 120-400mm F4.5-5.6 DG OS HSM has a focal range of 120-400mm and 3.3X zoom ratio.

Optical Image Stabilization

Sigma 120-400mm F4.5-5.6 DG OS HSM features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.

Zoom Method

Rotary (extending)

Aperture

Sigma 120-400mm F4.5-5.6 DG OS HSM has a max aperture of f4.5 at 120mm and max aperture of f5.6 at 400mm .
Pros and Cons of Sigma 120-400mm F4.5-5.6 DG OS HSM

PROs
Image Stabilization
Built-in Autofocus
Hood supplied
Tripod Collar
Full-time Manual Focusing
Covers Full-Frame Sensor

CONs
No Weather Sealing
Lens Extents while focusing
Slow Aperture at Wide end
Slow Aperture at Tele end
Variable Aperture
Heavy
Pricey
Sigma 120-400mm F4.5-5.6 DG OS HSM Detailed Specifications

General
Brand Sigma
Lens Type Zoom
Lens Type Telephoto Zoom
Lens Mount Canon EF
Max Format 35mm FF
Focal Range 120-400mm
Image Stabilization Yes
Colour Unknown
Zoom Method Rotary (extending)
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 3.3X
APERTURE
Max Aperture F4.5 - F5.6
Min Aperture F22.0 - F28.0
Aperture Ring No
Diaphragm Blades 9
Optics
Optical Elements 21
Optical Groups 15
Special Elements 3 SLD glass elements

FOCUSING
Min Focus Distance 1.5m
Max Magnification 0.24X
Autofocus Yes
AF Motor Type Ring-type ultrasonic
Full Time Manual Yes
Focus Method Rear
Distance Scale Yes
DoF Scale No
PHYSICAL SPECS
Weight 1640g
Diameter 92mm
Length 203mm
Materials Metal mount
Weather Sealing No
Filter Thread 77mm
Filter Notes -
Hood Supplied Yes
Tripod Collar Yes
Sigma 120-400mm F4.5-5.6 DG OS HSM Alternatives in Canon EF Mount
Model Coverage Weight Focusing Street Price
Canon EF 100-400mm f4.5-5.6L IS USM Lens Canon EF 100-400mm f4.5-5.6L IS USM
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35mm FF 1380gr AF Amazon B&H Photo
Canon EF 100-400mm f4.5-5.6L IS II USM Lens Canon EF 100-400mm f4.5-5.6L IS II USM
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35mm FF 1590gr AF Amazon B&H Photo
Sigma 100-400mm F5-6.3 DG OS HSM Lens Sigma 100-400mm F5-6.3 DG OS HSM
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35mm FF 1135gr AF Amazon B&H Photo
Frequently Asked Questions about Sigma 120-400mm F4.5-5.6 DG OS HSM
is the Sigma 120-400mm F4.5-5.6 DG OS HSM a Weather Sealed lens?
What is the Minimum Focusing Distance of Sigma 120-400mm F4.5-5.6 DG OS HSM
is the Sigma 120-400mm F4.5-5.6 DG OS HSM an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 120-400mm F4.5-5.6 DG OS HSM
Does Sigma 120-400mm F4.5-5.6 DG OS HSM have Image Stabilization?
Does Sigma 120-400mm F4.5-5.6 DG OS HSM have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 120-400mm F4.5-5.6 DG OS HSM
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