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Sony 28-75mm F2.8 SAM vs Sigma 24-70mm F2.8 EX DG Macro

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Sony 28-75mm F2.8 SAM

Standard Zoom | Sony Alpha

Sony 28-75mm F2.8 SAM
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Sigma 24-70mm F2.8 EX DG

Standard Zoom | Sony Alpha

Sigma 24-70mm F2.8 EX DG Macro
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Sony 28-75mm F2.8 SAM vs Sigma 24-70mm F2.8 EX DG Comparison Overview

In this review, we will be comparing Sony 28-75mm F2.8 SAM and Sigma 24-70mm F2.8 EX DG, two Standard Zoom lenses from Sony and Sigma.

We will start with briefly looking and the main specs of these two lenses and in the section, we will start analyzing in more detail and list the pros and cons of each lenses.

Sony 28-75mm F2.8 SAM Key Specs

  • 28-75mm Focal Range
  • F2.8 Max Aperture
  • Filter Thread: 67mm
  • Max Format: 35mm FF
  • Sony Alpha Mount
  • Weight: 565g.
  • Diameter: 78mm
  • Length: 98mm
  • Min Focus Distance:0.38m
  • Max Magnification:0.22x

Sigma 24-70mm F2.8 EX DG Key Specs

  • 24-70mm Focal Range
  • F2.8 Max Aperture
  • Filter Thread: 82mm
  • Max Format: 35mm FF
  • Sony Alpha Mount
  • Weight: 715g.
  • Diameter: 89mm
  • Length: 116mm
  • Min Focus Distance:0.4m
  • Max Magnification:0.26x

What type of photography are the Sony 28-75mm F2.8 SAM and Sigma 24-70mm F2.8 EX DG lenses good for?

The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony 28-75mm F2.8 SAM and the Sigma 24-70mm F2.8 EX DG for their suitability to various photography scenarios:

Photography Type Sony 28-75mm F2.8 SAM Sigma 24-70mm F2.8 EX DG
Bird/WildlifeFairFair
SportsAverageAverage
PortraitVery GoodVery Good
TravelVery GoodVery Good
StreetVery GoodVery Good
WeddingVery GoodVery Good
Walk AroundVery GoodVery Good
VloggingVery GoodVery Good
LandscapeVery GoodVery Good
MacroFairAverage

Size and Weight Comparison

Size of a lens is an important deciding factor when comparing two lenses.Sigma 24-70mm F2.8 EX DG is the longer of the two lenses at 116mm. The Sony 28-75mm F2.8 SAM with a length of 98mm is 18mm shorter. Besides being longer, the Sigma 24-70mm F2.8 EX DG also has a larger diameter of 89mm compared to Sony 28-75mm F2.8 SAM's 78mm diameter.

Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sony 28-75mm F2.8 SAM weighs 565g, which means it is 150g (20%) lighter than the Sigma 24-70mm F2.8 EX DG which has a weight of 715g.


Below you can find the dimension and weight table of the 'Standard Zoom Lenses in Sony Alpha Mount for size comparison purposes.

Standard Zoom Lenses in Sony Alpha Mount for Size Comparison
Model Length Diameter Weight Street Price
Sony DT 18-55mm F3.5-5.6 SAM Lens Sony DT 18-55mm F3.5-5.6 SAM
69mm
70mm 210g Amazon B&H Photo
Sony DT 16-50mm F2.8 SSM Lens Sony DT 16-50mm F2.8 SSM
88mm
81mm 577g Amazon B&H Photo
Tamron SP 24-70mm F2.8 Di VC USD Lens Tamron 24-70mm f2.8 VC USD
117mm
88mm 825g Amazon B&H Photo
Sigma 18-50mm F2.8-4.5 DC OS HSM Lens Sigma 18-50mm F2.8-4.5 DC OS HSM
89mm
74mm 395g Amazon B&H Photo
Sigma 24-70mm F2.8 EX DG HSM Lens Sigma 24-70mm F2.8 EX DG HSM
95mm
89mm 790g Amazon B&H Photo
Sigma 17-50mm F2.8 EX DC OS HSM Lens Sigma 17-50mm F2.8 EX DC OS HSM
92mm
84mm 565g Amazon B&H Photo
Sigma 18-35mm F1.8 DC HSM Lens Sigma 18-35mm F1.8 DC HSM
121mm
78mm 810g Amazon B&H Photo
Sony 24-70mm F2.8 ZA SSM Carl Zeiss Vario-Sonnar T Lens Sony 24-70mm F2.8 ZA SSM
111mm
83mm 955g Amazon B&H Photo

Lens Mounts

Both Sony 28-75mm F2.8 SAM and Sigma 24-70mm F2.8 EX DG has the same 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 24-70mm F2.8 EX DG is also available in Canon EF , Pentax KAF, Sigma SA and Nikon F (FX) mounts.

Focal Range

Sony 28-75mm F2.8 SAM has a focal range of 28-75mm and 2.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 42 - 112.5mm.
Sigma 24-70mm F2.8 EX DG has a focal range of 24-70mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 36 - 105mm.

Reasons to choose Sony 28-75mm F2.8 SAM over Sigma 24-70mm F2.8 EX DG Macro

Focal Length - Tele 75mm vs 70mm 5mm more Tele coverage
Weight 565g vs 715g 150g lighter
Diameter 78mm vs 89mm 11mm smaller in diameter
Length 98mm vs 116mm 18mm shorter
Filter Thread 67mm vs 82mm Smaller filters are cheaper and easier to find
Minimum Focus Distance 0.38m vs 0.4m can focus closer to the subject

Reasons to choose Sigma 24-70mm F2.8 EX DG Macro over Sony 28-75mm F2.8 SAM

Focal Length - Wide 24mm vs 28mm 4mm Wider coverage
Optical Zoom 2.90x vs 2.70x More flexible focal coverage
Diaphgragm Blades 9 vs 7 Potentially more rounded and smooth bokeh
Depth-of-Field Scale Yes vs No Depth of Field scale to assist focusing
Max Magnification 0.26x vs 0.22x higher magnification better for close-up shots

Common Strengths of Sony 28-75mm F2.8 SAM and Sigma 24-70mm F2.8 EX DG Macro
Internal Focusing Yes vs Yes Length of the lens doesn't change during focusing
Distance Scale Yes vs Yes Distance Scale to assist focusing
Common Weaknesses of Sony 28-75mm F2.8 SAM and Sigma 24-70mm F2.8 EX DG Macro
Image Stabilization No vs No Reliant on in-body Image Stabilization
Internal Zoom No vs No Length of the lens changes during zooming
Weather Sealing No vs No not safe under rain and dust



**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.

Sony 28-75mm F2.8 SAM vs Sigma 24-70mm F2.8 EX DG Specs Table

Detailed comparison of specifications
General
Brand Sony Sigma
Lens Type Zoom Zoom
Price CHECK PRICE CHECK PRICE
Lens Type Standard Zoom Standard Zoom
Lens Mount Sony Alpha Sony Alpha
Max Format 35mm FF 35mm FF
Focal Range 28-75mm 24-70mm
Image Stabilization No No
Colour Black Unknown
Zoom Method Rotary (extending) Rotary (extending)
Power Zoom - -
Zoom Lock Yes -
Zoom Ratio 2.7X 2.9X
Aperture
Max Aperture F2.8 F2.8
Min Aperture F32.0 F32.0
Aperture Ring No No
Diaphragm Blades 7 9
Optics
Optical Elements 16 14
Optical Groups 14 13
Focusing
Min Focus Distance 0.38m 0.4m
Max Magnification 0.22X 0.26X
Autofocus Yes Yes
AF Motor Type Micro-type ultrasonic Micromotor
Full Time Manual No No
Focus Method Internal Internal
Distance Scale Yes Yes
DoF Scale No Yes
Distance Scale Yes Yes
Focus Distance Limiter Unknown Unknown
Physical Specs
Weight 565g 715g
Diameter 78mm 89mm
Length 98mm 116mm
Materials Plastic barrel, metal mount Unknown
Weather Sealing No No
Filter Thread 67mm 82mm
Filter Notes Does not rotate on focusing -
Hood Supplied Yes Yes
Hood Code Unknown Unknown
Tripod Collar No No
Optional Accessories - -
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