Offering a 4X zoom coverage in the telephoto range, the DA 50-200mm features an angle of view from 31.5 degrees to 8.1 degrees (equivalent in focal length from 76.5mm to 306mm in the 35mm format). As with all DA-Series lenses, this DA 50mm-200mm features a responsive "Quick-Shift Focus System" that allows photographers to instantly switch the focus mode from auto to manual with a slight twist of the focus ring. Coupled with a simple, functional design and the elimination of an aperture ring, this new mechanism considerably improves operability. The lens also incorporates an Extra-low Dispersion (ED) glass lens element and two aspherical lens elements for true-to-life image reproduction and overall size reduction.
SpecificationsSupport
Lens mount:

- PENTAX KAF mount

Lens construction:

- 11 elements in 10 groups

Angle of view:

- 31.5° - 8.1° (when used with PENTAX Digital SLR camera body)

Diaphragm control:

- Automatic

Number of aperture blades:

- 6

Minimum aperture:

- f22 (at 50mm) - f32 (at 200mm)

Metering system:

- TTL open-aperture metering

Minimum focusing distance:

- 3.6 ft. (1.1m) over the entire zoom range

Filter size:

- 52mm

Maximum magnification:

- 0.24X

Dimensions (diameter x length):

- 2.6 x 3.1 inches (66.5 x 78.5mm)

Weight (w/o hood):

- 9.0 oz. (255g)

Click here to download the entire specifications manual.

 

DA Lens Instruction Manual
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