Pentax 18-250mm Lens Review by Gene Wright

 Pentax DA 18-250mm f/3.5-6.3 ED AL IF Lens

Pentax DA 18-250mm f/3.5-6.3 ED AL IF Wide to Telephoto Zoom Lens

Description

Designed for exclusive use with Pentax and Samsung digital SLR cameras, the DA 18-250mm interchangeable zoom lens gives you just about all the coverage you'll ever need. With an approximate 14x room ratio, this versatile lens handles a great variety of applications, from wide-angle landscapes to close-up sporting events and wildlife photography.

Features include ED element and two aspherical elements that compensate for chromatic and spherical aberration; a focal length equivalent to 27.5mm to 383mm in the 35mm format; a close focus range of 18 inches throughout the entire zoom range; and an internal focus mechanism that prevents the front lens element and lens barrels from moving during focusing.

    • 14x zoom range of 18-250mm makes this the ideal all-around lens
    • ED element and two aspherical elements compensate for chromatic and spherical aberration
    • Focal length equivalent to 27.5mm to 383mm in the 35mm format
    • Lens focuses as close as 18 inches throughout the entire zoom range
    • Internal focus mechanism prevents the front lens element and lens barrels from moving during focusing

Features

What a range! The smc PENTAX DA 18-250mm F3.5-6.3 ED AL [IF] interchangeable zoom lens, designed for exclusive use with PENTAX digital SLR cameras, will provide just about all the coverage you'll need. With an approximate 14X zoom ratio covering from wide-angle to super-telephoto ranges, this versatile lens handles a great variety of applications from wide-angle landscapes to close-up sporting events and wildlife photography.

Specifications
Overview
Lens styleZoom lens  
Max Format Size APS-C / DX  
Lens focal length18 – 250 mm  
Stabilization type No  
Camera mount Pentax KAF  
Angle of view 76 to 6.5 degrees  
Aperture (lens diaphragm)
Largest aperture opening F3.5 - F6.3  
Smallest aperture opening F22.0 - F45.0  
Includes aperture ring No  
Total diaphragm blades 7  
Optical
Total Elements 16  
Number of Groups 13  
Focusing
Minimum focus distance 0.45 m (17.72")  
Maximum magnification ratio 0.28 x  
Autofocus type Yes  
Lens motor Screw drive from camera  
Full time manual focus Unknown  
Lens distance scale Yes  
Depth of field scale Yes  
Physical features
Overall weight455 g (1.00 lb) 16 ounces (without hood)  
Lens diameter 75 mm (2.95")  
Overall length 86 mm (3.37")  
Lens color Black  
Zooming method Rotary (extending)  
Filter thread size 62 mm  
Filter annotations non rotating  
Lens hood included Yes  
Tripod collar included No
Item Includes

• Lens Hood
• Lens Cap
• Rear Lens Cap

Accessories


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