The HD PENTAX- D FA 150-450mm F4.5-5.6 ED DC AW is the longest zoom amongst all PENTAX lenses. With its 3-times zoom ratio, capturing a variety of distant objects is made easy. Along with impressive mid to super telephoto capabilities, the HD PENTAX- D FA150-450mm lens offers outstanding operability at an affordable price. Your photography will not be jeopardized due to unforeseen weather with high build quality, and weather-resistant construction. With a total of 21 seals throughout its body, changes in the weather will not be an issue during your outdoor photography. Focusing on your subject has never been easier with the all-new Preset Button, developed to record a focus point and save it. Take your landscape, wildlife and sports photography to the next level with the HD PENTAX- D FA 150-450mm lens.
Super-telephoto coverage with three-times zoom ratio
When mounted on a PENTAX K-mount SLR camera body, this zoom lens covers a super-telephoto range from approximately 230mm to 690mm in the 35mm format. It is designed to be compact and light enough to handhold during long-range shooting of such subjects as wildlife, aircraft and sports.
Outstanding image description
The state-of-the-art optics featuring three ED (Extra-low Dispersion) glass elements and one super-low dispersion glass element, effectively minimizes spherical and chromatic aberrations, while producing crisp, high-quality images free of color bleeding. Its MTF (Modulation Transfer Function) curve is programmed to be higher than those of conventional models in the same class to deliver high-resolution, fine-detailed images.
HD Coating to optimize image rendition
This lens is treated with the high-grade, multi-layer HD Coating.* Compared with conventional multi-layer coatings, this PENTAX-original coating assures higher light transmittance and less reflection to deliver bright, high-contrast images free of flare and ghost images, even under demanding lighting conditions such as backlight. * HD stands for High Definition.
All Weather Construction
This lens features dependable, dust-proof weather-resistant construction with 21 special seals to effectively prevent intrusion of water and dust particles into the lens interior. When used with a weather-resistant digital SLR camera body, it assures a durable, reliable digital imaging system that performs superbly in demanding shooting setting.
Improved Quick-Shift Focus System
The PENTAX-original Quick-Shift Focus System allows instant switching from autofocus to manual focus operation. Operability has been improved thanks to a three-position switch installed on this lens, allowing instant switching among QFS/A, QFS/M and MF modes. With a choice of three distinctive modes, the user is assured of speedier, more accurate focusing operation for a given subject or application.
This lens is equipped with 4 AF buttons, which provide more stable AF operation and better hold of the lens regardless of whether the user is shooting photos with the camera in a vertical and horizontal position. The user can assign preferred settings to these AF buttons including a Focus Preset Mode and AF Cancel Mode.
For more shooting convenience, press and hold the PRESET button to record a focus point after focusing.
Focus Range Limiter
Focus Range Limiter minimizes AF operation time by allowing the user to fix the focus range to one of three sub-ranges — Full, close range (2 to 6m)* or far range (6m to ∞). *This limiter does not operate in manual focus.
Zoom Lock Switch
The zoom lock switch prevents the lens from extending under its own weight while you are carrying the camera.
|Lens Mount||PENTAX KAF3 mount|
|Focal Length||150-450mm (equiv. 230-690mm)|
|Notes||HD coating Super Protect (SP) coating All Weather Construction Quick-shift Focus System|
|Angle of View||16.5°-5.5° (w/PENTAX DSLR)|
|Lens Construction(group/elements)||18 elements in 14 groups|
|Min. Aperture (f)||F22-27|
|Min. Focusing Distance||2.0m|
|Diameter & Length (mm)||95.0mm x 241.5mm (3.74 x 9.51 inches)|
|Weight (g)||2000g w/o hood (4lbs 6oz) 2325g w/hood (5lbs 2 oz)|
|Diaphragm control||Fully Automatic|
|Number of aperture blades||9 (rounded 150mm f/4.5-8, 450mm f/5.6-8)|