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Pentax HD D FA 24-70mm F2.8 ED SDM WR vs Tamron AF 28-75mm F2.8 XR Di LD Aspherical IF

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Pentax D FA 24-70mm F2.8 ED SDM WR

Standard Zoom | Pentax KAF3

HD Pentax D FA 24-70mm F2.8 ED SDM WR
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Tamron AF 28-75mm f2.8 XR LD

Standard Zoom | Pentax KAF

Tamron AF 28-75mm F2.8 XR Di LD Aspherical IF
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BUY from B&H PHOTO

Pentax D FA 24-70mm F2.8 ED SDM WR vs Tamron AF 28-75mm f2.8 XR LD Comparison Overview

In this review, we will be comparing Pentax D FA 24-70mm F2.8 ED SDM WR and Tamron AF 28-75mm f2.8 XR LD, two Standard Zoom lenses from Pentax and Tamron.

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.

Pentax D FA 24-70mm F2.8 ED SDM WR Key Specs

  • 24-70mm Focal Range
  • F2.8 Max Aperture
  • Weather Sealed
  • Max Format: 35mm FF
  • Pentax KAF3 Mount
  • Weight: 787g.
  • Diameter: 89mm
  • Length: 110mm

Tamron AF 28-75mm f2.8 XR LD Key Specs

  • 28-75mm Focal Range
  • F2.8 Max Aperture
  • Filter Thread: 67mm
  • Max Format: 35mm FF
  • Pentax KAF Mount
  • Weight: 510g.
  • Diameter: 73mm
  • Length: 92mm
  • Min Focus Distance:0.33m

What type of photography are the Pentax D FA 24-70mm F2.8 ED SDM WR and Tamron AF 28-75mm f2.8 XR LD lenses good for?

The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Pentax D FA 24-70mm F2.8 ED SDM WR and the Tamron AF 28-75mm f2.8 XR LD for their suitability to various photography scenarios:

Photography Type Pentax D FA 24-70mm F2.8 ED SDM WR Tamron AF 28-75mm f2.8 XR LD
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

Size and Weight Comparison

Size of a lens is an important deciding factor when comparing two lenses.Pentax D FA 24-70mm F2.8 ED SDM WR is the longer of the two lenses at 110mm. The Tamron AF 28-75mm f2.8 XR LD with a length of 92mm is 18mm shorter. Besides being longer, the Pentax D FA 24-70mm F2.8 ED SDM WR also has a larger diameter of 89mm compared to Tamron AF 28-75mm f2.8 XR LD's 73mm 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. Tamron AF 28-75mm f2.8 XR LD weighs 510g, 35% (277g) lighter than the Pentax D FA 24-70mm F2.8 ED SDM WR's weight of 787g.


Lens Mounts

Both Pentax D FA 24-70mm F2.8 ED SDM WR has the Pentax KAF3 lens mount whereas the Tamron AF 28-75mm f2.8 XR LD has the Pentax KAF lens mount. Some of the latest released cameras that are compatible with these mounts are Pentax KF, Pentax K-3 III and Pentax K-1 II for the Pentax KAF3 Mount and Pentax KF, Pentax K-3 III and Pentax K-1 II for the Pentax KAF Mount.

Tamron AF 28-75mm f2.8 XR LD is also available in Canon EF , Nikon F (FX) and Sony Alpha mounts.

Focal Range

Pentax D FA 24-70mm F2.8 ED SDM WR 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.
Tamron AF 28-75mm f2.8 XR LD 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.

Reasons to choose HD Pentax D FA 24-70mm F2.8 ED SDM WR over Tamron AF 28-75mm F2.8 XR Di LD Aspherical IF

Focal Length - Wide 24mm vs 28mm 4mm Wider coverage
Optical Zoom 2.90x vs 2.70x More flexible focal coverage
Weather Sealing Yes vs No safer to use under rain and dust
Minimum Focus Distance m vs 0.33m can focus closer to the subject

Reasons to choose Tamron AF 28-75mm F2.8 XR Di LD Aspherical IF over HD Pentax D FA 24-70mm F2.8 ED SDM WR

Focal Length - Tele 75mm vs 70mm 5mm more Tele coverage
Diaphgragm Blades 7 vs Potentially more rounded and smooth bokeh
Aperture Ring Yes vs No able to adjust the aperture on the lens
Weight 510g vs 787g 277g lighter
Diameter 73mm vs 89mm 16mm smaller in diameter
Length 92mm vs 110mm 18mm shorter
Common Weaknesses of HD Pentax D FA 24-70mm F2.8 ED SDM WR and Tamron AF 28-75mm F2.8 XR Di LD Aspherical IF
Image Stabilization No vs No Reliant on in-body Image Stabilization



**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.

Pentax D FA 24-70mm F2.8 ED SDM WR vs Tamron AF 28-75mm f2.8 XR LD Specs Table

Detailed comparison of specifications
General
Brand Pentax Tamron
Lens Type Zoom Zoom
Price CHECK PRICE CHECK PRICE
Lens Type Standard Zoom Standard Zoom
Lens Mount Pentax KAF3 Pentax KAF
Max Format 35mm FF 35mm FF
Focal Range 24-70mm 28-75mm
Image Stabilization No
Colour Unknown Black
Zoom Method No Zoom Rotary (extending)
Power Zoom - -
Zoom Lock - Yes
Zoom Ratio 2.9X 2.7X
Aperture
Max Aperture F2.8 F2.8
Min Aperture F32.0
Aperture Ring No Yes
Diaphragm Blades unknown 7
Optics
Optical Elements unknown 16
Optical Groups unknown 14
Focusing
Min Focus Distance unknown 0.33m
Max Magnification unknown unknown
Autofocus Yes Yes
AF Motor Type Ultrasonic Micromotor
Full Time Manual Unknown No
Focus Method Unknown Internal
Distance Scale Unknown Yes
DoF Scale Unknown Yes
Distance Scale Unknown Yes
Focus Distance Limiter Unknown Unknown
Physical Specs
Weight 787g 510g
Diameter 89mm 73mm
Length 110mm 92mm
Materials Unknown Unknown
Weather Sealing Yes Unknown
Filter Thread Unknown 67mm
Filter Notes - non rotating
Hood Supplied Yes Yes
Hood Code Unknown Unknown
Tripod Collar No No
Optional Accessories - -
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