Compact, lightweight telephoto zoom lens with outstanding portability
Despite its compact, lightweight design weighing approximately 819g, this zoom lens covers the image circle of 35mm full-frame digital SLRs, and provides a focal length range of 70mm – 210mm to facilitate handheld outdoor photography. When mounted on an APS-C-format camera, its focal length range is extended to the equivalent of 107mm-322mm in the 35mm format. Coupled with its compact, lightweight body, it can be easily integrated in any APS-C-format camera system. In its 20-element, 14-group optics, it incorporates three ED (Extra-low Dispersion) glass elements and two anomalous dispersion glass elements to deliver high-contrast, high-resolution images with edge-to-edge sharpness, while effectively compensating for distortion and chromatic and coma aberrations. The lens which allows the photographer to enjoy active field photography in a wide range of outdoor applications, including scenic photography, townscape shooting and wildlife photography where its outstanding portability really comes in handy.
Minimum focusing distance of 0.95 meter
This lens can be used as a tele-macro lens as the minimum focusing distance of 0.95 meter has been achieved for both the tele and wide, with the maximum magnification, 0.32x. By using with APS-C the maximum magnification is 0.48x
HD Coating to enhance imaging power
This lens features PENTAX’s latest HD Coating. Compared to conventional multi-layer coatings, this high-grade, multi-layer coating not only improves light transmittance but also reduces average reflectance in the visible light range by more than 50 percent, minimizing the adverse effects of flare and ghost images even in demanding lighting conditions such as backlighting.
Weather-resistant construction, perfect for outdoor photography
This zoom lens features a weather-resistant construction to prevent the intrusion of water into the lens barrel. When mounted on a PENTAX weather-resistant digital SLR camera body, it assures a durable, reliable digital imaging system that performs superbly in demanding shooting settings, even in rain or mist, or at locations prone to water splashes or spray.
Built-in SDM- This lens incorporates a ring-type SDM (Supersonic Direct-drive Motor) to assure quiet, high-speed AF operation and improve operability in outdoor shooting.
Focus limiter- Two-step focus range limiter, to minimize AF operation time.
Electromagnetic diaphragm control- Provides high-precision exposure control during video shooting.
SP Coating to repel stains
This lens features SP (Super Protect) Coating on its front surface. Applied by means of a PENTAX-exclusive fluorine deposition process, this coating is highly repellent to water, grease and dirt, making it easy to wipe off stains such as fingerprints. This frees the photographer from worries in outdoor photography.
Quick-shift Focus System, to provide instant shift to manual-focus operation, after locking the subject in focus during AF operation by pressing the shutter-release button halfway down
Nine-blade, round-shaped diaphragm, to produce a natural, beautiful bokeh (defocus) effect, while minimizing the streaking effect of point light sources
– Focal length (Equivalent to 35mm format) 70-210mm – Equivalent to 107-322mm in 35mm format (when attached to PENTAX APS-C size DSLR cameras)
– Maximum Aperture: f/4
– Minimum Aperture: f/2
– Lens construction: 20 elements in 14 groups
– Angle of View (Diagonal): 34.5°-11.8° – (when attached to PENTAX 35mm full-frame SLR cameras) : 23.0°-7.7°- (when attached to PENTAX APS-C size DSLR cameras)
– Mount: KAF4
– Minimum Focusing Distance: 0.95m
– Maximum Magnification: 0.32x
– Filter Diameter: 67mm
– Diaphragm Control: Electromagnetic diaphragm-Fully automatic
– Number of Diaphragm Blades: 9 – Rounded diaphragm (F4-F9.5)
– HD Coating
– SP (Super Protect) Coating
– WR (Weather Resistant)
– Quick-shift Focus System (QFS/M)
– SDM (Ultrasonic Motor)
– Focus Range Limiter
PENTAX / RICOH HD D-FA 70-210mm f/4 ED SDM WR Lens