vs

differences

Reasons to consider the Sigma 18-250mm f/3.5-6.3 DC 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
More zoom 13.9x vs 11.1x
Help
Around 30% more zoom, giving you more flexibility for photos
Better telephoto 250 mm vs 200 mm
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Around 30% more reach, less perspective distortion
Slightly more magnification 1:3.4 (0.3x) vs 1:4.4 (0.2x)
Help
Take macro shots with subjects around 30% larger in your photo
Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k Learn more about
the Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k

Reasons to consider the Sigma 18-200mm f/3.5-6.3 DC Pentax-k

Slightly lighter 405 g vs 0.6 kg
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Around 40% lighter
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

similarities

Compared to lenses

Common Strengths Common Weaknesses
Zoom range Incredible zoom Help
18-250mm f/3.5-6.3 DC OS HSM Pentax-k:13.9x
18-200mm f/3.5-6.3 DC Pentax-k:11.1x
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses
Fixed aperture Both are variable aperture lenses Help
Narrower aperture at longer focal lengths

Compared to travel lenses

Common Strengths Common Weaknesses

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

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

competitors

Shared 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

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

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

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

Wildlife lens

$397

Zoom range Has much smaller zoom range
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
Zoom range Has significantly smaller zoom range
Sigma 28-300mm f/3.5-6.3 DG Macro Pentax-k

Sigma 28-300mm f/3.5-6.3 DG Macro Pentax-k

Wildlife lens

$279

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

Zoom range Has way more smaller zoom range
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

Magnification Has better macro
Min focal length Has a slightly narrower wide angle lens
Zoom range Has way more smaller zoom range

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

Advantages

Disadvantages

Sigma 18-200mm f/3.5-6.3 II DC OS HSM Nikon-f

Sigma 18-200mm f/3.5-6.3 II DC OS HSM Nikon-f

Travel lens

$349

Zoom range Less zoom
Max focal length Worse telephoto
Tamron 28-75mm f/2.8 XR Di Pentax-k

Tamron 28-75mm f/2.8 XR Di Pentax-k

Portrait lens

$499

Fixed aperture Has a consant aperture
Wide maximum Significantly narrower aperture
Zoom range Much less zoom
Focus motor Doesn't have a silent focus motor
Tamron 18-250mm f/3.5-6.3 Di-II LD IF Macro Nikon-f

Tamron 18-250mm f/3.5-6.3 Di-II LD IF Macro Nikon-f

Travel lens

$279

Weight Slightly lighter
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Tamron 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f

Tamron 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f

Travel lens

$649

Zoom range More zoom
Weight Slightly lighter
Magnification Slightly less magnification

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

Advantages

Disadvantages

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
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
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

discussion Which do you think is better?

Speech is free, but discussion at LensHero is moderated! Please discuss your opinion of these lenses here, and discuss feedback for LensHero at our support community.

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