Sigma 17-50mm F2.8 EX DC HSM Pentax

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Sigma 17-50mm F2.8 EX DC HSM Pentax

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Indicative price (USD) 669  
Aperturef/ 2.8  
Focal range (mm) 17-50  
Filter diameter (mm) 77 
Max diameter (mm) 83.5 
Mount typePentax KAF  
AF MotorHSM  
Zoom typeRing  
Rotating front elementYes  
Tripod mountNo  
Full-Time manual focusNo  
Number of lenses17  
Number of groups13  
Diaphragm blades7  
Circular apertureYes  
Length (mm)91.8  
Weight (gr)550  

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