Pentax ED 28-105mm f/3.5-5.6 HD DFA DC

RICOH IMAGING introduces the HD PENTAX-D FA 28-105mm F3.5~5.6 ED DC WR, a compact and lightweight standard Zoom lens with high resolving power and universal use characteristics for the 35 mm full-frame image circle.

With a very versatile focal length range, this standard Zoom lens is ideal for everyday use on the new 35 mm full-frame PENTAX K-1 camera and offers many other first-class features in return.

With the new HD PENTAX-D FA 28-105mm F3.5~5.6 ED DC WR, twelve lenses from the FA or D FA series are now available for the 35 mm full-frame system.

Standard Zoom lens with wide focal length range
The 28-105mm standard Zoom lens covers the most commonly used focal length range for everyday photographer use. Optimum image quality is achieved by integrating the latest optical elements and high-performance coatings. The lightweight and compact body as well as the excellent price/performance ratio make this lens a perfect and high-quality standard lens for the PENTAX K-1.

Sophisticated lens construction
The lens construction of 15 elements in 11 groups includes two aspherical elements as well as one ED (Extra-Low Dispersion) and one AD (Anomalous Dispersion) element each. This combination ensures the finest resolution images with minimal chromatic and spherical aberrations as well as uniform illumination right to the edges of the image and is optimally matched with the 36.4 megapixel
35 mm full-frame sensor of the PENTAX K-1. The nine rounded aperture blades ensure an even and soft bokeh. In addition, this design avoids the elongated reproduction of point light sources.

Weatherproof design
The most interesting shots are always taken where the camera and lens are better left wrapped up. However, eight special seals effectively prevent dust and moisture from penetrating the lens, so that in combination with the PENTAX SLR cameras, which are also weatherproof, the lens is ideally equipped for use in rain, snow or on stormy days at the seaside.

HD coating for optimum light transmission and minimum reflection
The lens elements of this lens feature the multi-layer HD (High Definition) coating developed by PENTAX, which offers significantly higher light transmission with low reflection compared to conventional coatings. This enables maximum contrast and sharpness without flare and ghosting even in difficult conditions such as backlighting.

SP coating to prevent front lenscontamination
In addition to HD coating, the front lens of the lens is equipped with SP (Super Protect) coating, which protects against grease or water and simplifies cleaning.

Quick Shift for fast switching between autofocus and manual focus
Focusing is fast and reliable using a DC motor. Effortless focus correction is possible via the Quick Shift focus system. This allows manual correction directly after automatic focusing, without switching.

Lens compatibility
RICOH IMAGING currently offers three lens series for the PENTAX system.

• The FA lenses were originally designed for the analog 35 mm system and thus cover a 35 mm image circle. The lenses that remain in the program offer a useful extension for many applications with excellent imaging quality.

• Together with the digital cameras, the DA series was introduced, which is designed for digital recording technology and covers the image circle in APS-C format.

• The D FA series is the synthesis of both lens types. Optimized for digital shooting and designed for the 35 mm shooting format, they are the standard lenses for the 35 mm full-frame system.

The new HD PENTAX-D FA 28-105mm F3.5~5.6 ED DC WR lens can be used on all PENTAX K series cameras without any problems. Here it offers an effective focal length of
43 - 161 mm converted to the 35 mm format.