Tamron
70-200mm f/2.8 Di LD Macro Canon-ef
 vs
Pentax SMC
DA* 50-135mm f/2.8 ED SDM

vs

differences

Reasons to consider the Tamron 70-200mm f/2.8 Di LD Macro Canon-ef
Significantly narrower aperture f/32 vs f/22
Help
 At its narrowest, the 70-200mm f/2.8 Di LD Macro Canon-ef goes 1.1 f-stops narrower
More magnification 1:3.1 (0.3x) vs 1:5.8 (0.2x)
Help
 Take macro shots with subjects around 90% larger in your photo
Better telephoto 200 mm vs 135 mm
Help
 Around 50% more reach, less perspective distortion
Slightly cheaper $769.00 vs $1,396.95
Help
 The best price we've seen is $628 cheaper (more than 40% less)
Tamron 70-200mm f/2.8 Di LD Macro Canon-ef Learn more about
the Tamron 70-200mm f/2.8 Di LD Macro Canon-ef

Reasons to consider the Pentax DA* 50-135mm f/2.8 ED SDM
Has a silent focus motor Pentax SDM vs None
Help
 Focuses quickly and silently
Shorter 136 mm vs 194 mm
Help
 Around 30% shorter
Lighter 0.7 kg vs 1.1 kg
Help
 Around 40% lighter
Slightly better wide angle 50 mm vs 70 mm
Help
 Around 30% better wide angle
Slightly smaller diameter 76 mm vs 90 mm
Help
 Around 20% smaller lens at the end
Pentax SMC DA* 50-135mm f/2.8 ED SDM Learn more about
the Pentax DA* 50-135mm f/2.8 ED SDM

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
Weight Light weight Help
70-200mm f/2.8 Di LD Macro Canon-ef:1.1 kg
DA* 50-135mm f/2.8 ED SDM:0.7 kg
Min focal length Good wide-angle Help
70-200mm f/2.8 Di LD Macro Canon-ef:70 mm
DA* 50-135mm f/2.8 ED SDM:50 mm
Lowest price Inexpensive Help
70-200mm f/2.8 Di LD Macro Canon-ef:$769.00
DA* 50-135mm f/2.8 ED SDM:$1,396.95
Image stabilization No image stabilization Help
Risk of blur

competitors

Shared Competitors

Advantages

Disadvantages
Canon EF 70-200mm f/2.8L IS USM

Canon EF 70-200mm f/2.8L IS USM

Sports lens

$1,899
Image stabilization Has image stabilization
Length Is longer
Weight Is heavier
Compare the EF 70-200mm f/2.8L IS USM vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Compare the EF 70-200mm f/2.8L IS USM vs the SMC DA* 50-135mm f/2.8 ED SDM
Nikon Nikkor AF-S 70-200mm f/2.8G ED VR II

Nikon Nikkor AF-S 70-200mm f/2.8G ED VR II

Sports lens

$2,397
Image stabilization Has image stabilization
Lowest price Is slightly more expensive
Length Is longer
Compare the Nikkor AF-S 70-200mm f/2.8G ED VR II vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Compare the Nikkor AF-S 70-200mm f/2.8G ED VR II vs the SMC DA* 50-135mm f/2.8 ED SDM
Nikon Nikkor AF 80-200mm f/2.8D ED

Nikon Nikkor AF 80-200mm f/2.8D ED

Sports lens

$999
Length Is longer
Compare the Nikkor AF 80-200mm f/2.8D ED vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Compare the Nikkor AF 80-200mm f/2.8D ED vs the SMC DA* 50-135mm f/2.8 ED SDM
Sigma 70-200mm f/2.8 EX DG APO OS HSM

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

Sports lens

$1,249
Image stabilization Has image stabilization
Weight Is heavier
Compare the 70-200mm f/2.8 EX DG APO OS HSM vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Compare the 70-200mm f/2.8 EX DG APO OS HSM vs the SMC DA* 50-135mm f/2.8 ED SDM

Tamron 70-200mm f/2.8 Di LD Macro Canon-ef Competitors

Advantages

Disadvantages
Canon EF 70-200mm f/4L USM

Canon EF 70-200mm f/4L USM

Telephoto lens

$629
Focus motor Has a silent focus motor
Weight Lighter
Aperture Narrower aperture
Magnification Less magnification
Compare the EF 70-200mm f/4L USM vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Sigma 70-200mm f/2.8 EX DG OS HSM Canon-ef

Sigma 70-200mm f/2.8 EX DG OS HSM Canon-ef

Sports lens

$1,249
Focus motor Has a silent focus motor
Image stabilization Image stabilization
Wide maximum Significantly wider aperture
Magnification Less magnification
Compare the 70-200mm f/2.8 EX DG OS HSM Canon-ef vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Sigma 70-200mm f/2.8 EX DG OS HSM Nikon-f

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

Sports lens

$1,249
Focus motor Has a silent focus motor
Image stabilization Image stabilization
Wide maximum Significantly wider aperture
Magnification Less magnification
Compare the 70-200mm f/2.8 EX DG OS HSM Nikon-f vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Canon EF 70-200mm f/4L IS USM

Canon EF 70-200mm f/4L IS USM

Telephoto lens

$1,149
Image stabilization Image stabilization
Focus motor Has a silent focus motor
Aperture Narrower aperture
Magnification Less magnification
Compare the EF 70-200mm f/4L IS USM vs the 70-200mm f/2.8 Di LD Macro Canon-ef
Sigma 70-200mm f/2.8 II EX DG APO Macro HSM Canon-ef

Sigma 70-200mm f/2.8 II EX DG APO Macro HSM Canon-ef

Sports lens

$799
Focus motor Has a silent focus motor
Length Slightly shorter
Wide maximum Significantly wider aperture
Weight Slightly heavier
Compare the 70-200mm f/2.8 II EX DG APO Macro HSM Canon-ef vs the 70-200mm f/2.8 Di LD Macro Canon-ef

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

Advantages

Disadvantages
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
Lowest price Cheaper
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 SMC DA* 50-135mm f/2.8 ED SDM
Sigma 50-150mm f/2.8 II EX DC HSM Pentax-k

Sigma 50-150mm f/2.8 II EX DC HSM Pentax-k

Sports lens

$749
Lowest price Slightly cheaper
Max focal length Slightly better telephoto
Compare the 50-150mm f/2.8 II EX DC HSM Pentax-k vs the SMC DA* 50-135mm f/2.8 ED SDM
Rokinon 85mm f/1.4 Pentax-k

Rokinon 85mm f/1.4 Pentax-k

Sports lens

$269
Prime lens Is a prime lens
Aperture Significantly wider aperture
Auto focus Auto focus
Focus motor Doesn't have a silent focus motor
Compare the 85mm f/1.4 Pentax-k vs the SMC DA* 50-135mm f/2.8 ED SDM
Tamron 70-200mm f/2.8 Di LD Macro Pentax-k

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

Sports lens

$729
Wide maximum Significantly narrower aperture
Magnification More magnification
Focus motor Doesn't have a silent focus motor
Length Longer
Compare the 70-200mm f/2.8 Di LD Macro Pentax-k vs the SMC DA* 50-135mm f/2.8 ED SDM
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 Better telephoto
Zoom range More zoom
Fixed aperture Has a variable aperture
Focus motor Doesn't have a silent focus motor
Compare the SMC DA 55-300mm f/4-5.8 ED vs the SMC DA* 50-135mm f/2.8 ED SDM

discussion Which do you think is better?

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