
The Sigma USB dock works in conjunction with Sigma Optimization Pro software in order to connect a photographers lens to their personal computer to update firmware, calibrate the lens and other customizations such as the focus parameter. The dock is only compatible with the Sigma Art, Contemporary, and Sports line lenses featuring a Canon EF lens mount.

The Sigma USB dock works in conjunction with Sigma Optimization Pro software in order to connect a photographers lens to their personal computer to update firmware, calibrate the lens and other customizations such as the focus parameter. The dock is only compatible with the Sigma Art, Contemporary, and Sports line lenses featuring a Canon EF lens mount.

The 17-70mm F/2.8 Di III-A VC RXD (Model AFB070S700) is a large aperture everyday zoom lens for Sony E-mount APS-C mirrorless cameras. Fast, sharp, quiet, and small—this new APS-C zoom lens is extraordinarily versatile and perfect for everyday photography. The lens was created to achieve a broad zoom range and excellent image quality. With a focal length range of 17-70mm (a full-frame equivalent of 25.5-105mm), it’s the world's first 17-70mm F2.8 standard zoom lens with a 4.1x zoom ratio for APS-C cameras. The 17-70mm F2.8 includes Tamron's proprietary VC (Vibration Compensation). When shooting video, by utilizing AI technology, image stabilization performance improves compared to conventional models. Designed specifically for use with APS-C mirrorless cameras, the lens is light weight and compact, even with VC. Its small size and versatility make it a great choice for outdoor, travel and vacation photography, where compact camera bags are preferred, and of course for daily use. Additionally, photographers / users can take advantage of a close working distance. It features an MOD (Minimum Object Distance) of 0.19m (7.5 in) at the wide-angle end and 0.39m (15.4 in) at the telephoto end. The lens is equipped with Tamron’s RXD (Rapid eXtra-silent stepping Drive) AF drive system, a high-speed, precision stepping motor unit. It also incorporates a wide variety of other features, including Moisture-Resistant Construction and Fluorine Coating for added durability. In your everyday life and on your trips to distant places, this lens captures all the excitement and discoveries with the finest possible detail.

Enjoy handcrafted performance with this Sigma 14-24mm f/2.8 HSM Art lens. A constant f/2.8 aperture provides outstanding, high-resolution 50MP photos across the zoom range, while four separate aspherical lens elements minimize chromatic aberrations. Handcrafted and tested in Aizu, Japan, this Sigma 14-24mm f/2.8 HSM Art lens offers unparalleled precision and craftsmanship.
| Pros for Sigma - USB Dock for Canon Lenses | |||
|---|---|---|---|
| There were no pros for this product— | Image Quality, Versatility, Aperture, Zoom, Auto Focus | There were no pros for this product— | There were no pros for this product— |
| Cons for Sigma - USB Dock for Canon Lenses | |||
| There were no cons for this product— | Weight, Size | There were no cons for this product— | There were no cons for this product— |
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