TAMRON 17-28 F/2.8 DI III RXD SONY

Tamron 17-28mm f / 2.8 Di III RXD lens for Sony E

With a flexible wide-angle range, the 17-28mm f / 2.8 Di III RXD from Tamrones a versatile zoom for Sony E-mount full-frame mirrorless cameras. Covering wide-angle to wide-angle focal distances, this lens is particularly suitable for landscapes, astrophotography and architectural photography. Its bright constant maximum aperture f / 2.8 complements this range and offers greater control over depth of field along with improved performance in low light. The optical design incorporates XLD and LD elements, which produce a highly corrected image with reduced chromatic aberrations and color stripes to improve clarity and color accuracy. The individual elements also feature Tamron's BBAR coating, which suppresses flashes and phantom images for greater contrast when working in hard and backlight conditions. In addition, adding to the versatility, an RXD stepper motor allows fast,

The versatile wide-angle zoom is designed for Sony E-mount full-frame mirrorless cameras, however, it can also be used with APS-C models, where it will provide an equivalent focal length range of 25.5-42 mm.
The constant bright maximum aperture f / 2.8 provides constant brightness throughout the zoom range and offers improved control over depth of field.
The XLD (eXtra Low Dispersion) and LD (Low Dispersion) elements greatly reduce color stripes and chromatic aberrations throughout the zoom range for greater clarity and color accuracy.
The BBAR (broadband anti-reflective) coating has been applied to individual elements to suppress internal reflections, flashes and phantom images to achieve greater contrast and color fidelity when working in bright lighting conditions.

The RXD (Rapid eXtra-silent stepping Drive) autofocus engine offers impressively quiet, fast and smooth focus performance to accommodate both still images and video applications. This focusing system also offers a minimum focus distance of only 7.5 "and a maximum increase of 1: 5.2 for working with foreground subjects. Full-time manual focus override is also possible and is compatible with the focus function. Sony direct manual or manual tuned control.
A moisture-resistant construction benefits the use of this lens in inclement conditions, and a fluorine coating has also been applied to the front lens element to protect against dust, dirt and stains.
The nine-blade rounded diaphragm contributes to a nice bokeh quality.