Amazon.com

Designed for exclusive use on Pentax digital SLR cameras with smaller-size imagers, this Tamron AF 18-200mm f/3.5-6.3 Di-II aspherical macro zoom lens is ideal for a host of situations. The high-power zoom lens–which offers an equivalent focal length of 28-300mm in 35mm format–adds versatility to your lens menu, zooming from a true wide perspective to an ultra tele zoom, all in an amazingly easy-to-use design. As a result, the lens is ideal for everything from land (more…)

Technorati Tags: 18200mm, Aspherical, Cameras, Digital, f/3.56.3, Lens, Macro, Pentax, Tamron, Zoom

Amazon.com

The Sigma 70-300mm f4-5.6 DG Macro Lens for Pentax Digital SLR Cameras is a telephoto lens that offers excellent cost performance and is optimized for use with digital SLR cameras. Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300 millimeter focal length. It’s the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range. The lens f (more…)

Technorati Tags: 70300mm, Cameras, f/45.6, Lens, Macro, Pentax, Samsung, Sigma, Telephoto, Zoom

Tamron now offers a lightweight, compact, high-image-quality telephoto zoom lens with macro capability of 1: 2 that can be used with digital cameras. This new lens is a Di type lens using an optical system with improved multi-coating designed to function with digital SLR cameras as well as film cameras.With this 70-300mm telephoto zoom lens, flipping a macro switch in the focal length range of 180mm to 300mm obtains a maximum magnification ratio of 1: 2 at a minimum focus distan (more…)

Technorati Tags: 70300mm, Cameras, Digital, f/4.05.6, Lens, Macro, Pentax, Tamron, Zoom