Top 5 Things You Need to Know About the New Tamron 17-28mm F/2.8 Di III RXD Lens for Sony E-Mount Cameras

Tamron has announced pricing and availability for its new 17-28mm F/2.8 Di III RXD (Model A046). The lens is set to launch on July 25 for an MSRP of $899.

Designed for use with Sony E-Mount cameras, the Ultra Wide-Angle Zoom Lens features an optical design consisting of 13 lenses in 11 groups, including three aspherical elements, two LD (Low Dispersion) elements, and one XLD (eXtra Low Dispersion) element to help reduce chromatic aberrations. In addition, the unit incorporates a rounded 9-blade diaphragm for pleasing bokeh.

But while those specs might cover the basics, Tamron's latest offering is packed with plenty of additional features and conveniences. Here are the top five things you need to know about the A046:

1. Pairs Nicely with the Tamron A036

Designed to serve as a companion to the previously released and similarly priced Tamron 28-75mm F/2.8 Di III RXD (Model A036), the new A046 actually features the same 67mm filter diameter, allowing customers to use the same filters and lens caps on both models. And if users purchase both lenses, the pair gives photographers a combined reach of 17-75mm, covering a super-broad range from ultra wide-angle to medium telephoto for about $1,800 -- offering a more affordable two lens alternative to buying one G Master lens.

2. Easy to Carry Around

With a length of just 3.9 inches and a weight of only 14.8 ounces, the A046 features a rather light and compact form factor for a zoom lens of this type. This convenient size should make it comparatively easy to carry around during shoots while offering great balance when used on small profile mirrorless cameras.

3. Coated for Performance and Resistance

Thanks to Tamron's BBAR (Broad-Brand Anti-Reflection) coating, the lens is able to minimize ghosting and flare. Likewise, the front surface is coated with a protective fluorine compound to help the lens repel water and oil, making it easier to clean and less susceptible to dirt, moisture, and fingerprints. And beyond coating, environmental seals are also implemented around the lens mount and other areas to guard against moisture and rain drops for better protection during outdoor shoots.

4. It Focuses Close. Real Close.

At the unit's 17mm wide position, the lens offers an MOD of 7.5 in and a maximum magnification ratio of 1:5.2. Meanwhile, at 28mm, it reaches an MOD of 10.2 in and a maximum magnification ratio of 1:6. As a result of this focusing performance, the lens allows users to capture close shots. Likewise, shallow depth of field is possible when getting close to a subject and fully opening up the aperture, and shooters can also utilize wide-angle perspective with compositions that emphasize differences in foreground and background subject size.

5. Fast & Quiet AF Makes It Filmmaker & Vlogger Friendly

Powered by an RXD stepping motor unit and an AF drive with a sensor that can detect the position of the lens, the A046 features fast and accurate autofocus performance. This makes the unit a great fit for capturing moving subjects and videos. And since the focusing system is also able to remain quiet during operation, the lens won't produce any troublesome noise while filming.

Here's a full rundown of key specs for the 17-28mm F/2.8 Di III RXD (Model A046) per Tamron and B&H Photo-Video:

• E-Mount Lens/Full-Frame Format
• Aperture Range: f/2.8 to f/22
• XLD and LD Elements
• BBAR and Fluorine Coatings
• RXD Stepping AF Motor
• Moisture-Resistant Construction
• Rounded 9-Blade Diaphragm

Source: Tamron