Sigma
18-200mm f/3.5-6.3 DC Pentax-k
 vs
Pentax SMC
DA 50-200mm f/4-5.6 ED WR

vs

differences

Reasons to consider the Sigma 18-200mm f/3.5-6.3 DC Pentax-k
Much more zoom 11.1x vs 4x
Help
 Around 3x more zoom, giving you more flexibility for photos
Wider aperture f/3.5 vs f/4
Help
 At its widest, the 18-200mm f/3.5-6.3 DC Pentax-k captures marginally more light, 0.4 f-stops
Better wide angle 18 mm vs 50 mm
Help
 2.8x better wide angle
Sigma 18-200mm f/3.5-6.3 DC Pentax-k Learn more about
the Sigma 18-200mm f/3.5-6.3 DC Pentax-k

Reasons to consider the Pentax DA 50-200mm f/4-5.6 ED WR
Slightly lighter 261 g vs 405 g
Help
 Around 40% lighter
Pentax SMC DA 50-200mm f/4-5.6 ED WR Learn more about
the Pentax DA 50-200mm f/4-5.6 ED WR

similarities

Compared to lenses

Common Strengths Common Weaknesses

LensHero is not aware of any interesting strengths shared by these two products.
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses
Focus motor No silent focus motor Help
Louder and slower
Fixed aperture Both are variable aperture lenses Help
Narrower aperture at longer focal lengths

Compared to wildlife lenses

Common Strengths Common Weaknesses
Weight Light weight Help
18-200mm f/3.5-6.3 DC Pentax-k:405 g
DA 50-200mm f/4-5.6 ED WR:261 g
Min focal length Good wide-angle Help
18-200mm f/3.5-6.3 DC Pentax-k:18 mm
DA 50-200mm f/4-5.6 ED WR:50 mm
Lowest price Inexpensive Help
18-200mm f/3.5-6.3 DC Pentax-k:$249.00
DA 50-200mm f/4-5.6 ED WR:$196.95
Image stabilization No image stabilization Help
Risk of blur
Max focal length Poor telephoto Help
200 mm

competitors

Shared Competitors

Advantages

Disadvantages
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
Compare the SMC DA 55-300mm f/4-5.8 ED vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the SMC DA 55-300mm f/4-5.8 ED vs the SMC DA 50-200mm f/4-5.6 ED WR
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 Has image stabilization
Focus motor Has a silent focus motor
Wide maximum Has a lower max f/stop
Compare the 50-200mm f/4-5.6 DC OS HSM Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the 50-200mm f/4-5.6 DC OS HSM Pentax-k vs the SMC DA 50-200mm f/4-5.6 ED WR
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
Min focal length Has a slightly narrower wide angle lens
Compare the 70-300mm f/4-5.6 Di LD Macro Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the 70-300mm f/4-5.6 Di LD Macro Pentax-k vs the SMC DA 50-200mm f/4-5.6 ED WR
Pentax SMC DA 18-135mm f/3.5-5.6 ED AL DC WR

Pentax SMC DA 18-135mm f/3.5-5.6 ED AL DC WR

Travel lens

$497
Wide maximum Has a higher max f/stop
Compare the SMC DA 18-135mm f/3.5-5.6 ED AL DC WR vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the SMC DA 18-135mm f/3.5-5.6 ED AL DC WR vs the SMC DA 50-200mm f/4-5.6 ED WR
Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k

Sigma 70-300mm f/4-5.6 APO DG Macro Pentax-k

Macro lens

$209
Max focal length Has a slightly shorter telephoto lens
Magnification Has better macro
Min focal length Has a slightly narrower wide angle lens
Compare the 70-300mm f/4-5.6 APO DG Macro Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the 70-300mm f/4-5.6 APO DG Macro Pentax-k vs the SMC DA 50-200mm f/4-5.6 ED WR
Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k

Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k

Travel lens

$479
Image stabilization Has image stabilization
Focus motor Has a silent focus motor
Compare the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k vs the SMC DA 50-200mm f/4-5.6 ED WR
Pentax SMC DA FA 100mm f/2.8 WR Macro

Pentax SMC DA FA 100mm f/2.8 WR Macro

Macro lens

$847
Aperture Has a wider aperture
Wide maximum Has a higher max f/stop
Min focal length Has a slightly narrower wide angle lens
Max focal length Has a slightly longer telephoto lens
Compare the SMC DA FA 100mm f/2.8 WR Macro vs the 18-200mm f/3.5-6.3 DC Pentax-k
Compare the SMC DA FA 100mm f/2.8 WR Macro vs the SMC DA 50-200mm f/4-5.6 ED WR

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

Advantages

Disadvantages
Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax-k

Sigma 18-250mm f/3.5-6.3 DC Macro HSM Pentax-k

Travel lens

$399
Focus motor Has a silent focus motor
Zoom range More zoom
Compare the 18-250mm f/3.5-6.3 DC Macro HSM Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Tamron 18-200mm f/3.5-6.3 XR Di-II Macro Pentax-k

Tamron 18-200mm f/3.5-6.3 XR Di-II Macro Pentax-k

Travel lens

$290
Magnification Slightly more magnification
Compare the 18-200mm f/3.5-6.3 XR Di-II Macro Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Sigma 17-70mm f/2.8-4.5 DC Macro

Sigma 17-70mm f/2.8-4.5 DC Macro

Portrait lens

$369
Magnification More magnification
Aperture Wider aperture
Zoom range Much less zoom
Max focal length Worse telephoto
Compare the 17-70mm f/2.8-4.5 DC Macro vs the 18-200mm f/3.5-6.3 DC Pentax-k
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
Image stabilization Image stabilization
Lowest price Slightly more expensive
Compare the 18-200mm f/3.5-6.3 II DC OS Pentax-k vs the 18-200mm f/3.5-6.3 DC Pentax-k
Canon 100-400mm f/4.5-5.6L IS USM

Canon 100-400mm f/4.5-5.6L IS USM

Wildlife lens

$1,499
Image stabilization Image stabilization
Focus motor Has a silent focus motor
Zoom range Much less zoom
Aperture Narrower aperture
Compare the 100-400mm f/4.5-5.6L IS USM vs the 18-200mm f/3.5-6.3 DC Pentax-k

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

Advantages

Disadvantages
Pentax SMC 35mm DA L f/2.4 AL

Pentax SMC 35mm DA L f/2.4 AL

Low light lens

$217
Prime lens Is a prime lens
Aperture Significantly wider aperture
Max focal length Worse telephoto
Zoom range Less zoom
Compare the SMC 35mm DA L f/2.4 AL vs the SMC DA 50-200mm f/4-5.6 ED WR
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
Fixed aperture Has a consant aperture
Wide maximum Significantly narrower aperture
Weight Heavier
Zoom range Less zoom
Compare the 70-200mm f/2.8 Di LD Macro Pentax-k vs the SMC DA 50-200mm f/4-5.6 ED WR
Pentax SMC FA 50mm f/1.4

Pentax SMC FA 50mm f/1.4

Low light lens

$447
Aperture Much wider aperture
Prime lens Is a prime lens
Max focal length Worse telephoto
Zoom range Less zoom
Compare the SMC FA 50mm f/1.4 vs the SMC DA 50-200mm f/4-5.6 ED WR

discussion Which do you think is better?

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