The image circle in DA-series lenses is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in Pentax digital SLRs to optimize camera performance. This design also contributes to a drastic reduction in size, weight and production cost compared to 35mm-format counterparts with similar specifications.
Pentax DA (DA-Star) zoom lenses come equipped with the SDM System, which assures smoother, quieter auto-focusing operation by using a built-in supersonic motor. Like all Pentax lenses, this lens is treated with smc coating for maximum light transmission, sharp definition, and high contrast images.
In addition, SP (Super Protective) coating made of a special fluoride compound has been applied to the front surface of the lens through the use of a unique evaporation process. As a result, the lens offers excellent water and oil-repellent performance and makes for easier cleaning should the lens be accidentally smeared with fingerprints or cosmetics.
|Focal Length||18 to 135mm (35mm Equivalent Focal Length: 27.5 to 207mm)|
|Maximum Aperture||f/3.5 to 5.6|
|Minimum Aperture||f/22 to 38|
|Lens Mount||Pentax K|
|Angle of View||76� to 11.9�|
|Area of Coverage|
|Minimum Focus Distance||1.3' / 40 cm|
|Macro Reproduction Ratio|
|Optical Design||13 Elements in 11 Groups|
|Filter Size||62 mm (Front)|
|Dimensions (� x L)||2.9 x 3" / 7.37 x 7.62 cm|
|Weight||14.3 oz / 405 g|