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Sigma 105mm F2.8 EX DG Macro Pentax KAF Review

Sigma 105mm F2.8 EX DG Macro

Main Features

  • 105mm Focal Range
  • F2.8 Max Aperture
  • Filter Thread: 62mm
  • Max Format: 35mm FF
  • Pentax KAF Mount
  • Weight: 460g.
  • Diameter: 74mm
  • Length: 98mm
  • Min Focus Distance:0.31m
  • Max Magnification:1x
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Sigma 105mm F2.8 EX DG Macro Overview

Sigma 105mm F2.8 EX DG Macro is a Fixed aperture Auto Focus (AF) Macro Prime lens with 35mm FF max sensor coverage, and it is designed to be used with Pentax KAF mount cameras.

What type of photography is the Sigma 105mm F2.8 EX DG Macro lens good for?

The type of photography that you are planning to use the Sigma 105mm F2.8 EX DG Macro is an important decision factor. Here we have evaluated its suitability to various photography scenarios:

Photography Type Suitability
Bird/WildlifeAverage
SportsAverage
PortraitGood
TravelFair
StreetFair
WeddingGood
Walk AroundFair
VloggingFair
LandscapeFair
MacroVery Good

Reasons to Buy Sigma 105mm F2.8 EX DG Macro Lens

Here, we've included a summary of the advantages and disadvantages of the Sigma 105mm F2.8 EX DG Macro lens in a list form to help you determine whether it offers the features you need.

PROs
Autofocus
Distance Scale
DoF(Depth of Field) Scale
Hood supplied
Focus Distance Limiter
Covers Full-Frame Sensor
8 Diaphragm Blades
High Max Magnification ratio of 1x
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Buy Sigma 105mm F2.8 EX DG Macro from Amazon or B&H PHOTO


CONs
No Weather Sealing

Lens Mount

Sigma 105mm F2.8 EX DG Macro is compatible with cameras that have Pentax KAF lens mount. Some of the latest released cameras that are compatible with the Pentax KAF lenses are Pentax KF, Pentax K-3 III and Pentax K-1 II.

Sigma 105mm F2.8 EX DG Macro is also available in Canon EF , Nikon F (FX), Sony Alpha, Sigma SA and Four Thirds mounts.

Size, Weight and Filter Thread

Size and weight is a very important decision factor when searching for your next lens. Sigma 105mm F2.8 EX DG Macro has a maximum diameter of 74mm and total length of 98mm. It weighs 460g / 16.2 oz.

Sigma 105mm F2.8 EX DG Macro has a filter thread of 62mm.

Focal Range

Sigma 105mm F2.8 EX DG Macro has a fixed focal length of 105mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 157.5mm.

Optical Image Stabilization

Sigma 105mm F2.8 EX DG Macro doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).

Maximum Magnification Ratio

Sigma 105mm F2.8 EX DG Macro has a Max Magnification Ratio of 1x and has a minimum focusing distance of 0.31m.

Aperture

Sigma 105mm F2.8 EX DG Macro has a max aperture of F2.8.

Optical Formula

Sigma 105mm F2.8 EX DG Macro's optical formula consists of 11 elements in 10 groups .

Lens Hood

Sigma 105mm F2.8 EX DG Macro comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.

Popular Comparisons of Sigma 105mm F2.8 EX DG Macro

Here is the eight most popular comparisons of Sigma 105mm F2.8 EX DG Macro amongst Camera Decision readers.

Top Alternatives of Sigma 105mm F2.8 EX DG Macro Lens
Model Coverage Weight Focusing Street Price
Nikon Nikkor Z MC 105mm F2.8 VR S Lens Nikon Nikkor Z MC 105mm F2.8 VR S
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35mm FF 630gr AF Amazon B&H Photo
Pentax smc D-FA 100mm F2.8 Macro WR Lens Pentax smc D-FA 100mm F2.8 Macro WR
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35mm FF 340gr AF Amazon B&H Photo
Pentax smc D-FA 100mm F2.8 macro Lens Pentax smc D-FA 100mm F2.8 macro
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35mm FF 345gr AF Amazon B&H Photo
Tamron SP AF 90mm F2.8 Di Macro Lens Tamron SP AF 90mm F2.8 Di Macro
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35mm FF 405gr AF Amazon B&H Photo
Sigma 50mm F2.8 EX DG Macro Lens Sigma 50mm F2.8 EX DG Macro
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35mm FF 320gr AF Amazon B&H Photo
Pentax smc D-FA 50mm F2.8 Macro Lens Pentax smc D-FA 50mm F2.8 Macro
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35mm FF 265gr AF Amazon B&H Photo
Carl Zeiss Makro-Planar T 2100 Lens Carl Zeiss Makro-Planar T 2100
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35mm FF 680gr MF Amazon B&H Photo
Venus Laowa 105mm F2 Smooth Trans Focus Lens Venus Laowa 105mm F2 Smooth Trans Focus
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35mm FF 745gr MF Amazon B&H Photo

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**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 105mm F2.8 EX DG Macro Alternatives in Pentax KAF Mount
Model Coverage Weight Focusing Street Price
Pentax-D FA 85mm F1.4 ED SDM AW Lens Pentax-D FA 85mm F1.4 ED SDM AW
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35mm FF 1255gr AF Amazon B&H Photo
Pentax smc D-FA 100mm F2.8 Macro WR Lens Pentax smc D-FA 100mm F2.8 Macro WR
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35mm FF 340gr AF Amazon B&H Photo
Pentax smc D-FA 100mm F2.8 macro Lens Pentax smc D-FA 100mm F2.8 macro
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35mm FF 345gr AF Amazon B&H Photo
Samsung D-Xenon 100mm F2.8 macro Lens Samsung D-Xenon 100mm F2.8 macro
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35mm FF 345gr AF Amazon B&H Photo
Samyang 100mm F2.8 Macro Lens Samyang 100mm F2.8 Macro
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35mm FF 720gr MF Amazon B&H Photo
Sigma 85mm F1.4 EX DG HSM Lens Sigma 85mm F1.4 EX DG HSM
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35mm FF 725gr AF Amazon B&H Photo
Samyang 85mm F1.4 Aspherical IF Lens Samyang 85mm F1.4 Aspherical IF
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35mm FF 539gr MF Amazon B&H Photo
Voigtlander 90mm F3.5 APO-Lanthar SL II Lens Voigtlander 90mm F3.5 APO-Lanthar SL II
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35mm FF 320gr MF Amazon B&H Photo
Schneider PC-TS Macro-Symmar 4.590 HM Lens Schneider PC-TS Macro-Symmar 4.590 HM
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35mm FF 1110gr MF Amazon B&H Photo
Carl Zeiss Makro-Planar T 2100 Lens Carl Zeiss Makro-Planar T 2100
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35mm FF 680gr MF Amazon B&H Photo
Carl Zeiss Planar T1.4 85 Lens Carl Zeiss Planar T1.4 85
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35mm FF 700gr MF Amazon B&H Photo
Hartblei Superrotator Macro 120mm F4 TS Lens Hartblei Superrotator Macro 120mm F4 TS
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35mm FF 965gr MF Amazon B&H Photo
Rokinon 85mm F1.4 Lens Rokinon 85mm F1.4
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35mm FF 539gr MF Amazon B&H Photo
Venus Laowa 105mm F2 Smooth Trans Focus Lens Venus Laowa 105mm F2 Smooth Trans Focus
Compare
35mm FF 745gr MF Amazon B&H Photo
Venus Laowa 100mm F2.8 2X Ultra Macro APO Lens Venus Laowa 100mm F2.8 2X Ultra Macro APO
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35mm FF 638gr MF Amazon B&H Photo
Tamron SP AF 90mm F2.8 Di Macro Lens Tamron SP AF 90mm F2.8 Di Macro
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35mm FF 405gr AF Amazon B&H Photo

Sigma 105mm F2.8 EX DG Macro Detailed Specifications


General
Brand Sigma
Lens Type Prime
Lens Type Macro Prime
Lens Mount Pentax KAF
Max Format 35mm FF
Focal Range 105mm
Image Stabilization No
Colour Unknown
Zoom Method No Zoom
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 1.0X
APERTURE
Max Aperture F2.8
Min Aperture
Aperture Ring No
Diaphragm Blades 8
Optics
Optical Elements 11
Optical Groups 10

FOCUSING
Min Focus Distance 0.31m
Max Magnification 1X
Autofocus Yes
AF Motor Type Micromotor
Full Time Manual No
Focus Method Extending front
Focus Distance Limiter yes (0.4m)
Distance Scale Yes
DoF Scale Yes
PHYSICAL SPECS
Weight 460g
Diameter 74mm
Length 98mm
Weather Sealing No
Filter Thread 62mm
Filter Notes Does not rotate on focusing
Hood Supplied Yes
Tripod Collar No
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Frequently Asked Questions about Sigma 105mm F2.8 EX DG Macro
is the Sigma 105mm F2.8 EX DG Macro a Weather Sealed lens?
What is the Minimum Focusing Distance of Sigma 105mm F2.8 EX DG Macro
is the Sigma 105mm F2.8 EX DG Macro an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 105mm F2.8 EX DG Macro
Does Sigma 105mm F2.8 EX DG Macro have Image Stabilization?
Does Sigma 105mm F2.8 EX DG Macro have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 105mm F2.8 EX DG Macro
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