This compact, lightweight, standard zoom lens provides the most frequently requested focal-length range for general photography. Ranging from wide angle to medium telephoto, it’s designed to accommodate the image circle of the large full-frame image sensor, incorporating state-of-the-art optics and high-performance optical elements. When mounted on the PENTAX K-1 camera body, it delivers high-resolution imaging power, making it an ideal everyday-use lens, suitable for a variety of scenes, from landscape to street photography to portraits.
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Standard zoom lens covering most frequently-used range
This standard zoom lens accommodates the image circle of a full-frame image sensor, and covers focal lengths between 28mm wide angle to 105mm medium telephoto. By incorporating the latest optics and a number of high-performance optical elements, it retains a sufficient brightness level even at edges of the image field, while effectively compensating for aberrations. It delivers high-resolution images by optimizing the imaging power of the PENTAX K-1’s 36MP sensor. Its compact, lightweight design and excellent cost performance make this lens a perfect companion lens to the PENTAX K-1.
Excellent image resolution, complementing the PENTAX K-1 full-frame performance
With 15-element, 11-group optics, this zoom lens incorporates two high-precision aspherical optical elements, one ED (Extra-low Dispersion) glass optical element and one anomalous-dispersion glass optical element to deliver bright, sharp images with minimal chromatic and spherical aberrations. The optics are designed to deliver ample resolving power for the large, high-pixel image sensor, producing well-defined, fine-detailed images.
HD Coating to improve image description
This lens is treated with the high-grade, multi-layer HD (High Definition) coating. Compared with conventional multi-layer coatings, this PENTAX-original coating assures higher light transmittance and less reflection to deliver bright, high-contrast images that are free of flare and ghost images, even under demanding lighting conditions such as backlight.
Quick-Shift Focus System
This PENTAX-developed system allows for flawless, delay-free switching from autofocus to manual-focus operation, after the subject is captured in focus by the camera’s AF system.
Weather-resistant construction
This lens features a dependable weather-resistant construction with eight sealing parts to effectively prevent the intrusion of water into the lens interior. Paired with a weather-resistant PENTAX digital SLR camera body, it creates a durable, dependable digital imaging system that performs superbly in demanding shooting settings — even in rain or mist, or in locations prone to water splashing or spray.
Other features
• SP (Super Protect) Coating applied to the front surface of the lens to effectively repel water and grease.
• Rounded diaphragm to produce a smooth, beautiful bokeh (defocus) effect, while minimizing the streaking effect of point light sources.
• Built-in DC motor to assure smooth, quiet, high-speed autofocus operation
| Lens Mount | PENTAX KAF3 mount |
| Model No. | 21297 |
| Focal Length | 28-105mm (in 35mm format) 43-161mm (w/ PENTAX APS-C D-SLR) |
| Notes | HD coating SP coating Weather-Resistant Construction DC Motor Quick-shift Focus System |
| Angle of View | 15.5° – 53° (w/ PENTAX 35mm SLR) 23.5° – 75° (w/PENTAX APS-C D-SLR) |
| Lens Construction(group/elements) | 15 elements in 11 groups |
| Min. Aperture (f) | f/22-f/32 |
| Min. Focusing Distance | 0.5m |
| Max. Magnification | 0.22x |
| Filter Size | 62mm |
| Diameter & Length (mm) | 73.0mm x 86.5mm (2.87 x 3.41 inches) |
| Weight (g) | 440g w/o hood (15oz) 463g w/hood (1lb) |
| Diaphragm control | Fully Automatic |
| Number of aperture blades | 9 (Rounded Aperture: 28mm: F3.5-6.3 105mm: F5.6-10) |
Conditions of RICOH IMAGING NORTH AMERICA SAMPLE Products
Return Policy: All Sample Products may be returned within thirty (30) days of purchase to receive a full refund of the Sample Product’s purchase price (return shipping will not be refunded). Refunds of the purchase price will be made to the same credit or debit card used when ordering. If, for some reason, the same credit or debit card is not available, the Customer must contact Ricoh to make other arrangements for refunding the charge or debit of the purchase price. Please note that all charges related to the return shipping of the Sample Product to the service center are the responsibility of the original purchaser. In returning this Product, the original purchaser must prepay all postage, shipping transportation, insurance, and delivery costs and the Sample Product must be delivered in packaging and shipping materials that afford an adequate degree of protection for the Sample Product. (Note: Ricoh will not assume any responsibility for damages or loss encountered in transit to the approved service center but will assist in processing any claims whenever possible.)
