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Tamron 18-270mm F/3.5-6.3 Di II VC PZD Nikon versus Pentax smc Pentax DA 18-250mm F3.5-6.3 ED AL [IF]

Scores and measurements are available only for tested lenses. For preview lenses, you can compare their specs.

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

DxOMark Score

Best at f=18mm & f/4[?]
9

Lens Metric Scores

Sharpness
[?]
4P-Mpix
Transmission
[?]
5.9TStop
Distortion
[?]
0.7%
Vignetting
[?]
-0.9EV
Chr. aberration
[?]
9µm
dxomark
Pentax smc Pentax DA 18-250mm F3.5-6.3 ED AL [IF]

DxOMark Score

Best at f=18mm & f/3.5[?]
8

Lens Metric Scores

Sharpness
[?]
5P-Mpix
Transmission
[?]
5.6TStop
Distortion
[?]
0.6%
Vignetting
[?]
-0.8EV
Chr. aberration
[?]
14µm
dxomark
Tamron 18-270mm F/3.5-6.3 Di II VC PZD Nikon
Announced2010-12-01 
Indicative price (USD) 649 
Aperturef/3.5-6.3  
Focal range (mm) 18 - 270  
Filter diameter (mm) 62 
Max diameter (mm) 74.4 
Mount typeNikon F DX  
StabilizationYes  
AF MotorPiezo Drive (PZD)  
Zoom typeRing  
Rotating front elementNo  
Tripod mountNo  
ColorBlack  
Full-Time manual focusNo  
Number of lenses16  
Number of groups13  
Diaphragm blades7  
Circular apertureNo  
Length (mm)88  
Weight (gr)450  

Certain fields may be left blank. They will be updated as soon as possible.
dxomark
Pentax smc Pentax DA 18-250mm F3.5-6.3 ED AL [IF]
Announced2007-10-01 
Indicative price (USD) 499 
Aperturef/3.5-6.3  
Focal range (mm) 18 - 250  
Filter diameter (mm) 62 
Max diameter (mm) 75 
Mount typePentax KAF  
StabilizationNo  
AF MotorNo  
Zoom typeRing  
Rotating front elementNo  
Tripod mountNo  
ColorBlack  
Full-Time manual focusBlack  
Number of lenses16  
Number of groups13  
Diaphragm blades7  
Circular apertureNo  
Length (mm)85.5  
Weight (gr)455  

Certain fields may be left blank. They will be updated as soon as possible.
dxomark

in P-Mpix
Focal: 18 - 35 - 50 - 100 - 200 - 270
 
Focal: 18 - 35 - 50 - 70 - 100 - 200 - 250
 
Aperture: 0
 
Aperture: 0
 

in EV

in EV
Focal: 18 - 35 - 50 - 100 - 200 - 270
 
Focal: 18 - 35 - 50 - 100 - 200 - 250
 
Aperture: 3.5 - 4 - 5.6 - 8 - 11 - 22
 
Aperture: 3.5 - 5.6 - 8 - 11 - 22
 

in micrometer