vs

differences

Reasons to consider the Tamron 70-200mm f/2.8 Di LD Macro Pentax-k

Significantly narrower aperture f/32 vs f/22
Help
At its narrowest, the 70-200mm f/2.8 Di LD Macro Pentax-k goes 1.1 f-stops narrower
More magnification 1:3.1 (0.3x) vs 1:8 (0.1x)
Help
Take macro shots with subjects more than 2.5x larger in your photo
Cheaper $729.00 vs $1,699.00
Help
The best price we've seen is $970 cheaper (2.3x less)
Slightly lighter 1.1 kg vs 1.4 kg
Help
More than 20% lighter
Tamron 70-200mm f/2.8 Di LD Macro Pentax-k Learn more about
the Tamron 70-200mm f/2.8 Di LD Macro Pentax-k

Reasons to consider the Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k

Has a silent focus motor Sigma HSM vs None
Help
Focuses quickly and silently
Image stabilization Sigma OS vs None
Help
Helps eliminate blur caused by small camera movements
Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k Learn more about
the Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k

similarities

Compared to lenses

Common Strengths Common Weaknesses
Fixed aperture Constant aperture lenses Help
The same aperture at all focal lengths
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses

Compared to sports lenses

Common Strengths Common Weaknesses
Min focal length Good wide-angle Help
70 mm
Weight Light weight Help
70-200mm f/2.8 Di LD Macro Pentax-k:1.1 kg
70-200mm f/2.8 EX DG OS HSM Pentax-k:1.4 kg
Lowest price Inexpensive Help
70-200mm f/2.8 Di LD Macro Pentax-k:$729.00
70-200mm f/2.8 EX DG OS HSM Pentax-k:$1,699.00

LensHero is not aware of any interesting weaknesses shared by these two products.

competitors

Shared Competitors

Advantages

Disadvantages

Tamron 70-300mm f/4-5.6 Di LD Macro Pentax-k

Tamron 70-300mm f/4-5.6 Di LD Macro Pentax-k

Macro lens

$165

Max focal length Has a slightly shorter telephoto lens
Magnification Has better macro
Aperture Has a narrower aperture
Fixed aperture Has a variable aperture
Pentax SMC  DA* 50-135mm f/2.8 ED SDM

Pentax SMC DA* 50-135mm f/2.8 ED SDM

Sports lens

$1,397

Length Is shorter
Pentax SMC  DA 50-200mm f/4-5.6 ED WR

Pentax SMC DA 50-200mm f/4-5.6 ED WR

Wildlife lens

$197

Weight Is lighter
Aperture Has a narrower aperture
Fixed aperture Has a variable aperture
Pentax SMC 60-250mm f/4 ED DA* SDM

Pentax SMC 60-250mm f/4 ED DA* SDM

Wildlife lens

$1,397

Aperture Has a narrower aperture
Pentax SMC  DA 55-300mm f/4-5.8 ED

Pentax SMC DA 55-300mm f/4-5.8 ED

Wildlife lens

$397

Max focal length Has a slightly shorter telephoto lens
Length Is shorter
Aperture Has a narrower aperture
Fixed aperture Has a variable aperture
Sigma 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k

Sigma 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k

Sports lens

$799

Sigma 18-200mm f/3.5-6.3 II DC OS Pentax-k

Sigma 18-200mm f/3.5-6.3 II DC OS Pentax-k

Travel lens

$499

Min focal length Has a slightly wider wide angle lens
Zoom range Has way more large zoom range
Aperture Has a narrower aperture
Fixed aperture Has a variable aperture

Tamron 70-200mm f/2.8 Di LD Macro Pentax-k Competitors

Advantages

Disadvantages

Olympus Zuiko 50-200mm f/2.8-3.5 ED SWD

Olympus Zuiko 50-200mm f/2.8-3.5 ED SWD

Wildlife lens

$1,199

Focus motor Has a silent focus motor
Length Shorter
Fixed aperture Has a variable aperture
Wide maximum Significantly wider aperture

Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k Competitors

Advantages

Disadvantages

Tamron 70-200mm f/2.8 Di LD Macro Nikon-f

Tamron 70-200mm f/2.8 Di LD Macro Nikon-f

Sports lens

$769

Wide maximum Significantly narrower aperture
Magnification More magnification
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Canon EF 135mm f/2.8 Soft Focus

Canon EF 135mm f/2.8 Soft Focus

Sports lens

$489

Prime lens Is a prime lens
Wide maximum Significantly narrower aperture
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Sigma 70-300mm f/4-5.6 DG Macro Nikon-f

Sigma 70-300mm f/4-5.6 DG Macro Nikon-f

Macro lens

$159

Magnification Significantly more magnification
Max focal length Better telephoto
Fixed aperture Has a variable aperture
Focus motor Doesn't have a silent focus motor

discussion Which do you think is better?

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