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

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
Slightly lighter 1.1 kg vs 1.4 kg
Help
 Around 20% lighter
Slightly more magnification 1:3.1 (0.3x) vs 1:3.5 (0.3x)
Help
 Take macro shots with subjects more than 10% larger in your photo
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 II EX DG APO Macro HSM Pentax-k
Has a silent focus motor Sigma HSM vs None
Help
 Focuses quickly and silently
Slightly shorter 184 mm vs 194 mm
Help
 Around 10% shorter
Sigma 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k Learn more about
the Sigma 70-200mm f/2.8 II EX DG APO Macro 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
Length Quite long Help
70-200mm f/2.8 Di LD Macro Pentax-k:194 mm
70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k:184 mm

Compared to sports lenses

Common Strengths Common Weaknesses
Lowest price Inexpensive Help
70-200mm f/2.8 Di LD Macro Pentax-k:$729.00
70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k:$799.00
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 II EX DG APO Macro HSM Pentax-k:1.4 kg
Image stabilization No image stabilization Help
Risk of blur

competitors

Shared Competitors

Advantages

Disadvantages
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
Compare the SMC DA* 50-135mm f/2.8 ED SDM vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Compare the SMC DA* 50-135mm f/2.8 ED SDM vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
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
Magnification Has worse macro
Compare the SMC 60-250mm f/4 ED DA* SDM vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Compare the SMC 60-250mm f/4 ED DA* SDM vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
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
Compare the SMC DA 55-300mm f/4-5.8 ED vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Compare the SMC DA 55-300mm f/4-5.8 ED vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Sigma 70-200mm f/2.8 EX DG OS HSM Pentax-k

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

Sports lens

$1,699
Image stabilization Has image stabilization
Magnification Has worse macro
Compare the 70-200mm f/2.8 EX DG OS HSM Pentax-k vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Compare the 70-200mm f/2.8 EX DG OS HSM Pentax-k vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Tamron SP 90mm f/2.8 Di Macro Pentax-k

Tamron SP 90mm f/2.8 Di Macro Pentax-k

Macro lens

$460
Magnification Has better macro
Length Is shorter
Max focal length Has a slightly longer telephoto lens
Zoom range Has slightly smaller zoom range
Compare the SP 90mm f/2.8 Di Macro Pentax-k vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Compare the SP 90mm f/2.8 Di Macro Pentax-k vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Sigma 50-500mm f/4.5-6.3 APO DG OS HSM Pentax-k

Sigma 50-500mm f/4.5-6.3 APO DG OS HSM Pentax-k

Wildlife lens

$1,599
Max focal length Has a significantly shorter telephoto lens
Image stabilization Has image stabilization
Aperture Has a narrower aperture
Fixed aperture Has a variable aperture
Compare the 50-500mm f/4.5-6.3 APO DG OS HSM Pentax-k vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Compare the 50-500mm f/4.5-6.3 APO DG OS HSM Pentax-k vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k

Tamron 70-200mm f/2.8 Di LD Macro Pentax-k 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
Length Shorter
Max focal length Better telephoto
Fixed aperture Has a variable aperture
Wide maximum Significantly wider aperture
Compare the 70-300mm f/4-5.6 Di LD Macro Pentax-k vs the 70-200mm f/2.8 Di LD Macro Pentax-k
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 Lighter
Zoom range More zoom
Fixed aperture Has a variable aperture
Wide maximum Significantly wider aperture
Compare the SMC DA 50-200mm f/4-5.6 ED WR vs the 70-200mm f/2.8 Di LD Macro Pentax-k
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
Compare the Zuiko 50-200mm f/2.8-3.5 ED SWD vs the 70-200mm f/2.8 Di LD Macro Pentax-k
Sigma 200-500mm f/2.8 EX DG APO IF Nikon-f

Sigma 200-500mm f/2.8 EX DG APO IF Nikon-f

Sports lens

$28,999
Max focal length Much better telephoto
Lowest price Much more expensive
Weight Much heavier
Compare the 200-500mm f/2.8 EX DG APO IF Nikon-f vs the 70-200mm f/2.8 Di LD Macro Pentax-k

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

Advantages

Disadvantages
Sigma 50-200mm f/4-5.6 DC OS HSM Pentax-k

Sigma 50-200mm f/4-5.6 DC OS HSM Pentax-k

Wildlife lens

$159
Image stabilization Image stabilization
Length Shorter
Wide maximum Much wider aperture
Fixed aperture Has a variable aperture
Compare the 50-200mm f/4-5.6 DC OS HSM Pentax-k vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Pentax SMC DA 70mm f/2.4

Pentax SMC DA 70mm f/2.4

Low light lens

$697
Prime lens Is a prime lens
Length Significantly shorter
Focus motor Doesn't have a silent focus motor
Max focal length Worse telephoto
Compare the SMC DA 70mm f/2.4 vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Pentax SMC DA FA 100mm f/2.8 WR Macro

Pentax SMC DA FA 100mm f/2.8 WR Macro

Macro lens

$847
Magnification Much more magnification
Prime lens Is a prime lens
Focus motor Doesn't have a silent focus motor
Max focal length Worse telephoto
Compare the SMC DA FA 100mm f/2.8 WR Macro vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Sigma 300-800mm f/5.6 EX DG APO IF HSM Canon-ef

Sigma 300-800mm f/5.6 EX DG APO IF HSM Canon-ef

Wildlife lens

$7,999
Max focal length Much better telephoto
Wide maximum Significantly narrower aperture
Length Much longer
Weight Much heavier
Compare the 300-800mm f/5.6 EX DG APO IF HSM Canon-ef vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k
Nikon Nikkor AF-S DX VR 55-200mm f/4-5.6G IF-ED

Nikon Nikkor AF-S DX VR 55-200mm f/4-5.6G IF-ED

Wildlife lens

$247
Image stabilization Image stabilization
Length Shorter
Fixed aperture Has a variable aperture
Aperture Narrower aperture
Compare the Nikkor AF-S DX VR 55-200mm f/4-5.6G IF-ED vs the 70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k

discussion Which do you think is better?

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