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Sigma 24-70mm F2.8 EX DG HSM Pentax KAF3 Review
Sigma 24-70mm F2.8 EX DG HSM

Main Features

  • 24-70mm Focal Range
  • F2.8 Max Aperture
  • Filter Thread: 82mm
  • Max Format: 35mm FF
  • Pentax KAF3 Mount
  • Weight: 790g.
  • Diameter: 89mm
  • Length: 95mm
  • Min Focus Distance:0.38m
  • Max Magnification:0.19x
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Sigma 24-70mm F2.8 EX DG HSM Overview
Sigma 24-70mm F2.8 EX DG HSM is an Auto Focus (AF) Standard Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Pentax KAF3 mount cameras.

Lens Mount

Sigma 24-70mm F2.8 EX DG HSM is compatible with cameras that have Pentax KAF3 lens mount.Some of the latest released cameras with Pentax KAF3 lens mount are , and .

Sensor Coverage

Max sensor coverage of Sigma 24-70mm F2.8 EX DG HSM is 35mm FF.

Focal Range

Sigma 24-70mm F2.8 EX DG HSM has a focal range of 24-70mm and 2.9X zoom ratio.

Zoom Method

Rotary (extending)

Aperture

Sigma 24-70mm F2.8 EX DG HSM has a constant max aperture of f2.8 from 24mm all the way to the 70mm .
Pros and Cons of Sigma 24-70mm F2.8 EX DG HSM

PROs
Built-in Autofocus
Hood supplied
Full-time Manual Focusing
Fast and Bright at Wide end
Fast and Bright at Tele end
Constant f2.8 Aperture throughout the range
Covers Full-Frame Sensor

CONs
No Weather Sealing
Lens Extents while focusing
Sigma 24-70mm F2.8 EX DG HSM Detailed Specifications

General
Brand Sigma
Lens Type Zoom
Lens Type Standard Zoom
Lens Mount Pentax KAF3
Max Format 35mm FF
Focal Range 24-70mm
Image Stabilization No
Colour Unknown
Zoom Method Rotary (extending)
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 2.9X
APERTURE
Max Aperture F2.8
Min Aperture F22.0
Aperture Ring No
Diaphragm Blades 9
Optics
Optical Elements 14
Optical Groups 12
Special Elements 1 ELD glass element 2 SLD glass elements 3 Aspherical elements

FOCUSING
Min Focus Distance 0.38m
Max Magnification 0.19X
Autofocus Yes
AF Motor Type Ring-type ultrasonic
Full Time Manual Yes
Focus Method Internal
Distance Scale Yes
DoF Scale Yes
PHYSICAL SPECS
Weight 790g
Diameter 89mm
Length 95mm
Weather Sealing No
Filter Thread 82mm
Filter Notes Does not rotate on focusing
Hood Supplied Yes
Tripod Collar No
Sigma 24-70mm F2.8 EX DG HSM Alternatives in Pentax KAF3 Mount
Model Coverage Weight Focusing Street Price
Frequently Asked Questions about Sigma 24-70mm F2.8 EX DG HSM
is the Sigma 24-70mm F2.8 EX DG HSM a Weather Sealed lens?
What is the Minimum Focusing Distance of Sigma 24-70mm F2.8 EX DG HSM
is the Sigma 24-70mm F2.8 EX DG HSM an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 24-70mm F2.8 EX DG HSM
Does Sigma 24-70mm F2.8 EX DG HSM have Image Stabilization?
Does Sigma 24-70mm F2.8 EX DG HSM have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 24-70mm F2.8 EX DG HSM
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