Tonight, Tamron announced the Tamron 17-35mm f/2.8-4 Di OSD lens, an incredibly small and light weight ultra-wide-angle zoom for 35mm full-frame DSLR cameras. With an emphasis on portability and reducing backlight flare, this could be THE ultra-wide-angle lens to make it’s way into your bag.
Tamron’s new 17-35mm f/2.8-4 Di OSD lens at just 3.5 inches or 90mm (Canon mount will be 3.6 inches) in length and 16.2 oz. (460 grams) in weight, is the smallest and lightest zoom lens among full frame ultra-wide-angle lenses that are faster than f/4. Tamron have also focused the new lens on working well no matter the elements or conditions you throw at it with a moisture-resistant construction, a broad-band anti-reflection (BBAR) coating to reduce ghosting and flare, as well as a fluorine coating to keep the front element protected and free of debris. The lens will also have a minimum focusing distance of just 11 inches or 28cms.
Moisture Resistant Construction
With the new 17-35mm f/2.8-4 Di OSD lens, Tamron has developed an Optimized Silent Drive (OSD) with increased auto focus tracking speed while simultaneously reducing drive noise for superb silent operation. Tamron has also made this new lens compatible with the Tamron TAP-in Console which allows customization over focus adjustment, focus distance limiter, VC adjustment, full-time manual focus override settings, and lens firmware updates by connecting to the bayonet mount of the lens.
Tamron's Optimized Silent Drive (OSD)
In creating the lens, Tamron paid special attention to back-lighting and the resulting ghosting and flaring this may cause and created the lens around a comprehensive ghosting analysis simulation throughout its development. The optical construction of 15 elements in 10 groups uses four low dispersion lens elements to minimize axial chromatic aberrations (color fringing) that can occur with ultra-wide-angle zoom lenses, and two glass molded aspherical lenses to reduce any additional distortion or aberrations. Lastly, the aperture features a seven-blade diaphragm for smooth, round bokeh when photographing near wide open.
15 elements in 10 groups with four low dispersion elements and two glass molded aspherical lenses
The Tamron 17-35mm f/2.8-4 Di OSD lens will be available in Nikon mount on September 4, 2018 at a suggested retail price of $599. The launch of the Canon mount model will be announced soon.
MTF charts below:
Additional images of the new Tamron 17-35mm f/2.8-4 Di OSD Lens:
Looking forward to reviews on this one. I've had the NIkon 16-35mm f4 for a few years now but i find the constant f4 limiting especially when wanting to dip my toes in astro.
I have had the earlier version of this for many years, and up until the last three it had been very useful--I made good money with that lens.
I did find the changing aperture annoying though, and tended to just set it at f/4 and use it that way.