Tamron
18-270mm f/3.5-6.3 Di II VC PZD Nikon-f
 vs
Sigma
18-250mm f/3.5-6.3 DC OS HSM Pentax-k

vs

differences

Reasons to consider the Tamron 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f
More zoom 15x vs 13.9x
Help
 Around 10% more zoom, giving you more flexibility for photos
Slightly lighter 450 g vs 0.6 kg
Help
 Around 30% lighter
Slightly better telephoto 270 mm vs 250 mm
Help
 Around 10% more reach, less perspective distortion
Tamron 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f Learn more about
the Tamron 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f

Reasons to consider the Sigma 18-250mm f/3.5-6.3 DC OS HSM Pentax-k
Slightly more magnification 1:3.4 (0.3x) vs 1:3.8 (0.3x)
Help
 Take macro shots with subjects more than 10% 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

similarities

Compared to lenses

Common Strengths Common Weaknesses
Zoom range Incredible zoom Help
18-270mm f/3.5-6.3 Di II VC PZD Nikon-f:15x
18-250mm f/3.5-6.3 DC OS HSM Pentax-k:13.9x
Focus motor Silent focus motor Help
18-270mm f/3.5-6.3 Di II VC PZD Nikon-f:Tamron PZD
18-250mm f/3.5-6.3 DC OS HSM Pentax-k:Sigma HSM
Image stabilization Good image stabilization Help
18-270mm f/3.5-6.3 Di II VC PZD Nikon-f:Tamron VC
18-250mm f/3.5-6.3 DC OS HSM Pentax-k:Sigma OS
Max focal length Good telephoto Help
18-270mm f/3.5-6.3 Di II VC PZD Nikon-f:270 mm
18-250mm f/3.5-6.3 DC OS HSM Pentax-k:250 mm
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

No significant shared competitors found.

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

Advantages

Disadvantages
Nikon Nikkor AF-S DX 18-200mm f/3.5-5.6G ED VR II

Nikon Nikkor AF-S DX 18-200mm f/3.5-5.6G ED VR II

Travel lens

$847
Image stabilization Better image stabilization
Zoom range Significantly less zoom
Max focal length Worse telephoto
Compare the Nikkor AF-S DX 18-200mm f/3.5-5.6G ED VR II vs the 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f
Sigma 18-250mm f/3.5-6.3 DC OS HSM Nikon-f

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

Travel lens

$329
Lowest price Slightly cheaper
Magnification Slightly more magnification
Zoom range Less zoom
Weight Slightly heavier
Compare the 18-250mm f/3.5-6.3 DC OS HSM Nikon-f vs the 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f
Nikon Nikkor AF-S 28-300mm f/3.5-5.6G ED VR

Nikon Nikkor AF-S 28-300mm f/3.5-5.6G ED VR

Travel lens

$1,047
Image stabilization Better image stabilization
Max focal length Slightly better telephoto
Zoom range Significantly less zoom
Weight Slightly heavier
Compare the Nikkor AF-S 28-300mm f/3.5-5.6G ED VR vs the 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f
Nikon Nikkor AF-S 55-300mm f/4.5-5.6G ED VR

Nikon Nikkor AF-S 55-300mm f/4.5-5.6G ED VR

Wildlife lens

$397
Image stabilization Better image stabilization
Max focal length Slightly better telephoto
Zoom range Much less zoom
Aperture Narrower aperture
Compare the Nikkor AF-S 55-300mm f/4.5-5.6G ED VR vs the 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f
Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Nikon-f

Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Nikon-f

Travel lens

$399
Lowest price Slightly cheaper
Zoom range Less zoom
Max focal length Slightly worse telephoto
Compare the 18-250mm f/3.5-6.3 DC Macro OS HSM Nikon-f vs the 18-270mm f/3.5-6.3 Di II VC PZD Nikon-f

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

Advantages

Disadvantages
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
Max focal length Better telephoto
Magnification Slightly more magnification
Focus motor Doesn't have a silent focus motor
Image stabilization No image stabilization
Compare the 28-300mm f/3.5-6.3 DG Macro Pentax-k vs the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k
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 More magnification
Max focal length Better telephoto
Zoom range Much less zoom
Focus motor Doesn't have a silent focus motor
Compare the 70-300mm f/4-5.6 Di LD Macro Pentax-k vs the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k
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 Much narrower aperture
Weight Slightly lighter
Zoom range Much less zoom
Focus motor Doesn't have a silent focus motor
Compare the SMC DA 18-135mm f/3.5-5.6 ED AL DC WR vs the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k
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
Compare the 18-200mm f/3.5-6.3 II DC OS HSM Nikon-f vs the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k
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
Compare the 28-75mm f/2.8 XR Di Pentax-k vs the 18-250mm f/3.5-6.3 DC OS HSM Pentax-k

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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