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Sigma 70-300mm F4-5.6 DG OS A Mount Review

Sigma 70-300mm F4-5.6 DG OS

Main Features

  • 70-300mm Focal Range
  • F4.0 - F5.6 Max Aperture
  • Image Stabilization
  • Filter Thread: 58mm
  • Max Format: 35mm FF
  • Sony Alpha Mount
  • Weight: 610g / 1.34 lb
  • Dimensions(øxL): 77mm x 126mm
  • Min Focus Distance: 1.5m
  • Max Magnification: 0.26x
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Sigma 70-300mm F4-5.6 DG OS Overview


Sigma 70-300mm F4-5.6 DG OS is a Variable aperture Auto Focus (AF) Telephoto Zoom lens with Optical Image stabilization and 35mm FF max sensor coverage, and it is designed to be used with A Mount cameras.

What type of photography is the Sigma 70-300mm F4-5.6 DG OS lens good for?

The type of photography that you are planning to use the Sigma 70-300mm F4-5.6 DG OS is an important decision factor. Here we have evaluated its suitability to various photography scenarios:

Photography Type Suitability
Bird/WildlifeGood
SportsGood
PortraitAverage
TravelFair
StreetFair
WeddingAverage
Walk AroundAverage
VloggingPoor
LandscapeAverage
MacroAverage

Lenses in Sony Alpha Mount with Same Focal and Aperture Range
Model Coverage Weight Focusing Street Price
Sigma 70-300mm F4-5.6 APO DG Macro Lens Sigma 70-300mm F4-5.6 APO DG Macro
Compare
35mm FF 550gr AF Amazon B&H Photo
Sigma 70-300mm F4-5.6 DG Macro Lens Sigma 70-300mm F4-5.6 DG Macro
Compare
35mm FF 550gr AF Amazon B&H Photo
Tamron AF 70-300mm F4-5.6 Di LD Macro Lens Tamron AF 70-300mm F4-5.6 Di LD Macro
Compare
35mm FF 435gr AF Amazon B&H Photo
Tamron SP 70-300mm F4-5.6 Di USD Lens Tamron SP 70-300mm F4-5.6 Di USD
Compare
35mm FF 765gr AF Amazon B&H Photo

Reasons to Buy Sigma 70-300mm F4-5.6 DG OS Lens

Here we've included a summary of the advantages and disadvantages of the Sigma 70-300mm F4-5.6 DG OS lens in a list form to help you determine whether it offers the features you need.

PROs
Optical Image Stabilization
Autofocus
Distance Scale
DoF(Depth of Field) Scale
Hood supplied
Covers Full-Frame Sensor
9 Diaphragm Blades for Smooth Bokeh
Report a correction

Buy Sigma 70-300mm F4-5.6 DG OS from Amazon or B&H PHOTO


CONs
No Weather Sealing
Lens Extends while zooming
Slow Aperture at Tele end
Variable Aperture


Lens Mount

Sigma 70-300mm F4-5.6 DG OS is compatible with cameras that have a Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.

Sigma 70-300mm F4-5.6 DG OS is also available in Canon EF , Nikon F (FX), Pentax KAF3 and Sigma SA mounts.


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Size, Weight and Filter Thread

Size and weight is a very important decision factor when searching for your next lens. Sigma 70-300mm F4-5.6 DG OS has a maximum diameter of 77mm and total length of 126mm when not extended. It weighs 610g / 21.5 oz.

Sigma 70-300mm F4-5.6 DG OS has a filter thread of 58mm. Below are links to the filters that we recommend you to consider for your Sigma 70-300mm F4-5.6 DG OS:

  • 58mm Variable ND Lens Filters
  • 58mm Circular Polarizer Lens Filters
  • 58mm Clear Protection Lens Filters




Focal Range

Sigma 70-300mm F4-5.6 DG OS has a focal range of 70-300mm and 4.3X zoom ratio. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 105 - 450mm.


Optical Image Stabilization

The Sigma 70-300mm F4-5.6 DG OS features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.

Zoom Method

Sigma 70-300mm F4-5.6 DG OS features Rotary (extending) zoom method where the length of the lens changes as you zoom in or out. This makes it possible to design the lens with a smaller minimum length ( generally when it is zoomed out) compared to internal zoom lenses. The disadvantages of this design are being harder to seal against dust and moisture, weight balance shifting while zooming and zoom creep in certain lenses.

Maximum Magnification Ratio

Sigma 70-300mm F4-5.6 DG OS has a Max Magnification Ratio of 0.26x and has a minimum focusing distance of 1.5m. For a non-macro lens, the 0.26x is considered a high magnification and will come handy for close-up shots.

Below are the 3 Telephoto Zoom type Sony Alpha mount lens alternatives with highest max magnification ratios:

  • Sigma 70-300mm F4-5.6 DG: 0.5x - (Compare)
  • Sigma 70-300mm F4-5.6 DG: 0.5x - (Compare)
  • Tamron 70-200mm f2.8 LD: 0.32x - (Compare)

Aperture

Sigma 70-300mm F4-5.6 DG OS is a variable aperture lens with a max aperture of f4 and a minimum aperture of f22 at 70mm, and a max aperture of f5.6 and minimum aperture of f32 at 300mm .

Focal Length Max Aperture Min Aperture
70mm F4 F22
300mm F5.6 F32

Optical Formula

Sigma 70-300mm F4-5.6 DG OS's optical formula consists of 16 elements in 11 groups . Special elements used in this design is 1 SLD glass element.

Lens Hood

Sigma 70-300mm F4-5.6 DG OS comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.

Popular Comparisons of Sigma 70-300mm F4-5.6 DG OS

Here are the eight most popular comparisons of the Sigma 70-300mm F4-5.6 DG OS amongst Camera Decision readers.

Top Alternatives of Sigma 70-300mm F4-5.6 DG OS Lens
Model Coverage Weight Focusing Street Price
Sony 70-300mm F4.5-5.6 G SSM II Lens Sony 70-300mm F4.5-5.6 G SSM II
Compare
35mm FF 750 g / 1.65 lb AF Amazon B&H Photo
Sigma 70-300mm F4-5.6 APO DG Macro Lens Sigma 70-300mm F4-5.6 APO DG Macro
Compare
35mm FF 550 g / 1.21 lb AF Amazon B&H Photo
Sony 75-300mm F4.5-5.6 Lens Sony 75-300mm F4.5-5.6
Compare
35mm FF 460 g / 1.01 lb AF Amazon B&H Photo
Sony 70-300mm F4.5-5.6 G SSM Lens Sony 70-300mm F4.5-5.6 G SSM
Compare
35mm FF 760 g / 1.67 lb AF Amazon B&H Photo
Tamron AF 70-300mm F4-5.6 Di LD Macro Lens Tamron AF 70-300mm F4-5.6 Di LD Macro
Compare
35mm FF 435 g / 0.96 lb AF Amazon B&H Photo
Sony 70-400mm F4-5.6 G SSM II Lens Sony 70-400mm F4-5.6 G SSM II
Compare
35mm FF 1,500 g / 3.30 lb AF Amazon B&H Photo
Sony DT 55-200mm F4-5.6 SAM Lens Sony DT 55-200mm F4-5.6 SAM
Compare
APS-C / DX 305 g / 0.67 lb AF Amazon B&H Photo
Sigma 70-300mm F4-5.6 DG Macro Lens Sigma 70-300mm F4-5.6 DG Macro
Compare
35mm FF 550 g / 1.21 lb AF Amazon B&H Photo


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate, I earn from qualifying purchases.

Sigma 70-300mm F4-5.6 DG OS Alternatives in Sony Alpha Mount
Model Coverage Weight Focusing Street Price
Sony 70-300mm F4.5-5.6 G SSM II Lens Sony 70-300mm F4.5-5.6 G SSM II
Compare
35mm FF 750 g / 1.65 lb AF Amazon B&H Photo
Sony 70-300mm F4.5-5.6 G SSM Lens Sony 70-300mm F4.5-5.6 G SSM
Compare
35mm FF 760 g / 1.67 lb AF Amazon B&H Photo
Sony 70-400mm F4-5.6 G SSM Lens Sony 70-400mm F4-5.6 G SSM
Compare
35mm FF 1490 g / 3.28 lb AF Amazon B&H Photo
Sony 70-400mm F4-5.6 G SSM II Lens Sony 70-400mm F4-5.6 G SSM II
Compare
35mm FF 1500 g / 3.30 lb AF Amazon B&H Photo
Sony 75-300mm F4.5-5.6 Lens Sony 75-300mm F4.5-5.6
Compare
35mm FF 460 g / 1.01 lb AF Amazon B&H Photo
Sony DT 55-300mm F4.5-5.6 SAM Lens Sony DT 55-300mm F4.5-5.6 SAM
Compare
APS-C / DX 460 g / 1.01 lb AF Amazon B&H Photo
Sigma 70-300mm F4-5.6 APO DG Macro Lens Sigma 70-300mm F4-5.6 APO DG Macro
Compare
35mm FF 550 g / 1.21 lb AF Amazon B&H Photo
Sigma 70-300mm F4-5.6 DG Macro Lens Sigma 70-300mm F4-5.6 DG Macro
Compare
35mm FF 550 g / 1.21 lb AF Amazon B&H Photo
Tamron AF 70-300mm F4-5.6 Di LD Macro Lens Tamron AF 70-300mm F4-5.6 Di LD Macro
Compare
35mm FF 435 g / 0.96 lb AF Amazon B&H Photo
Tamron SP 70-300mm F4-5.6 Di USD Lens Tamron SP 70-300mm F4-5.6 Di USD
Compare
35mm FF 765 g / 1.68 lb AF Amazon B&H Photo

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Sigma 70-300mm F4-5.6 DG OS Detailed Specifications


General
Brand Sigma
Lens Type Zoom
Lens Type Telephoto Zoom
Lens Mount Sony Alpha
Max Format 35mm FF
Focal Range 70-300mm
Image Stabilization Yes
Colour Unknown
Zoom Method Rotary (extending)
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 4.3X
APERTURE
Max Aperture F4.0 - F5.6
Min Aperture F22.0 - F32.0
Aperture Ring No
Diaphragm Blades 9
Optics
Optical Elements 16
Optical Groups 11
Special Elements 1 SLD glass element

FOCUSING
Min Focus Distance 1.5m
Max Magnification 0.26X
Autofocus Yes
AF Motor Type Micromotor
Full Time Manual No
Focus Method Extending front
Distance Scale Yes
DoF Scale Yes
PHYSICAL SPECS
Weight 610g
Diameter 77mm
Length 126mm
Weather Sealing No
Filter Thread 58mm
Filter Notes rotates on focusing
Hood Supplied Yes
Tripod Collar No
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Frequently Asked Questions about Sigma 70-300mm F4-5.6 DG OS
is the Sigma 70-300mm F4-5.6 DG OS a Weather-sealed lens?
What is the Minimum Focusing Distance of Sigma 70-300mm F4-5.6 DG OS
is the Sigma 70-300mm F4-5.6 DG OS an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 70-300mm F4-5.6 DG OS
Does Sigma 70-300mm F4-5.6 DG OS have Image Stabilization?
Does Sigma 70-300mm F4-5.6 DG OS have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 70-300mm F4-5.6 DG OS


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