vs

differences

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

Has a consant aperture Yes vs No
Help
Constant aperture lenses offer the same aperture at all focal lengths
Slightly more magnification 1:3.5 (0.3x) vs 1:4.8 (0.2x)
Help
Take macro shots with subjects around 40% larger in your photo
Slightly cheaper $799.00 vs $1,199.00
Help
The best price we've seen is $400 cheaper (more than 30% less)
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

Reasons to consider the Olympus 50-200mm f/2.8-3.5 ED SWD

More zoom 4x vs 2.9x
Help
40% more zoom, giving you more flexibility for photos
Slightly shorter 157 mm vs 184 mm
Help
More than 10% shorter
Slightly lighter 1 kg vs 1.4 kg
Help
Around 30% lighter
Slightly better wide angle 50 mm vs 70 mm
Help
Around 30% better wide angle
Olympus Zuiko 50-200mm f/2.8-3.5 ED SWD Learn more about
the Olympus 50-200mm f/2.8-3.5 ED SWD

similarities

Compared to lenses

Common Strengths Common Weaknesses
Focus motor Silent focus motor Help
70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k:Sigma HSM
50-200mm f/2.8-3.5 ED SWD :Olympus SWD
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses

Compared to wildlife lenses

Common Strengths Common Weaknesses
Aperture Wide aperture Help
f/2.8
Min focal length Good wide-angle Help
70-200mm f/2.8 II EX DG APO Macro HSM Pentax-k:70 mm
50-200mm f/2.8-3.5 ED SWD :50 mm
Image stabilization No image stabilization Help
Risk of blur
Max focal length Poor telephoto Help
200 mm

competitors

Shared Competitors

Advantages

Disadvantages

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 Has a higher max f/stop
Focus motor Lacks a silent focus motor
Sigma 70-200mm f/2.8 II EX DG APO Macro HSM

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

Sports lens

$799

Olympus 150mm f/2 ED

Olympus 150mm f/2 ED

Sports lens

$2,499

Aperture Has a wider aperture
Prime lens Is a fixed focal length prime lens
Lowest price Is slightly more expensive
Min focal length Has a slightly narrower wide angle lens

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

Advantages

Disadvantages

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 Image stabilization
Magnification Less magnification
Lowest price More expensive
Pentax SMC  DA* 50-135mm f/2.8 ED SDM

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

Sports lens

$1,397

Weight Lighter
Length Shorter
Max focal length Worse telephoto
Magnification Less magnification
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

Zoom range Much more zoom
Max focal length Much better telephoto
Fixed aperture Has a variable aperture
Aperture Significantly narrower aperture
Pentax SMC 60-250mm f/4 ED DA* SDM

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

Wildlife lens

$1,397

Wide maximum Significantly narrower aperture
Zoom range More zoom
Aperture Narrower aperture
Magnification Less magnification
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

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

Advantages

Disadvantages

Olympus Zuiko 70-300mm f/4-5.6 ED

Olympus Zuiko 70-300mm f/4-5.6 ED

Macro lens

$299

Magnification More magnification
Max focal length Better telephoto
Focus motor Doesn't have a silent focus motor
Aperture Narrower aperture
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

Fixed aperture Has a consant aperture
Image stabilization Image stabilization
Zoom range Less zoom
Weight Heavier
Sigma 18-200mm f/3.5-6.3 DC

Sigma 18-200mm f/3.5-6.3 DC

Wildlife lens

$249

Zoom range Much more zoom
Length Shorter
Focus motor Doesn't have a silent focus motor
Aperture Narrower aperture
Sigma 50-500mm f/4.5-6.3 DG OS HSM APO

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

Wildlife lens

$1,509

Max focal length Much better telephoto
Zoom range Significantly more zoom
Aperture Significantly narrower aperture
Weight Heavier
Canon EF 300mm f/2.8L IS USM

Canon EF 300mm f/2.8L IS USM

Sports lens

$4,340

Image stabilization Image stabilization
Prime lens Is a prime lens
Min focal length Much worse wide angle
Weight Significantly heavier

discussion Which do you think is better?

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