Venus Optics Laowa 60mm f/2.8 Ultra Macro and... Overview

Venus Optics Laowa 60mm f/2.8 2X Ultra-Macro Lens for Pentax K-Mount

From macro to infinity, the Pentax K-mount Laowa 60mm f/2.8 2X Ultra-Macro Lens from Venus Optics is a prime portrait-length lens offering the unique ability to photograph close-up subjects 2.4'' away at a 2:1 magnification ratio as well as distant subjects with infinity focus and a 0.1x magnification. The versatility offered by this manual focus, manual aperture selection lens benefits working with close-up subjects and then quickly switching to full-length subjects at distance without the need of extension tubes or other adapters. The lens is optimized for use on APS-C format sensors, where it will provide a 90mm equivalent focal length, and it can also be used on full-frame format DSLRs , however some vignetting may occur when focused at infinity.

The lens's construction incorporates nine elements in seven groups, and two of the lens groups move in order to control focusing and to avoid barrel distortions. This design also helps to maintain high image clarity, sharpness, and color accuracy. A rounded 14-blade diaphragm contributes to a smooth out-of-focus quality that is especially beneficial when working with near subjects and selective focus techniques.

Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Pentax K

Dedicated to extreme close-up imaging, the Pentax K-mount Laowa 25mm f/2.8 2.5-5X Ultra Macro from Venus Optics is a specialized macro lens for photographing subjects at magnifications greater than life-size. Operating within a 2.5:1 to 5:1 range, this lens has a minimum focus distance of just 6.8'' at the 5:1 magnification along with a comfortable 1.6'' working distance. This range is benefitted by the wide-angle focal length, too, in order to achieve greater depth of field compared to long focal length macro lenses. Complementing the close-up capabilities, the optical design incorporates one extra-low dispersion element to reduce color fringing and chromatic aberrations for a high degree of clarity. Additionally, distinguishing itself from other macro lenses, this 25mm f/2.8 is characterized by its notably sleek and lightweight design for easier handling and more room to work with artificial lighting.