Tamron jumps in the "AF-S" bandwagon

[Seanzky]

Canon's USM, in my opinion, is kick ass. When auto-focusing, it's very silent, quick and accurate. Nikon's isn't too shabby either. But one of the chief complaints by Tamron users is the lack of a silent motor. Not anymore.

Tamron has announced the development of a 70-300mm f/4-5.6 zoom lens featuring image stabilization and an ultrasonic auto-focus drive. The SP 70-300mm F4-5.6 Di VC USD is the company's first lens to feature its latest Ultrasonic Silent Drive (USD) autofocus motor, with full-time manual focus override. The optical design includes an element made from Extra-Low Dispersion (XLD) glass, said to have optical properties similar to fluorite. Designed for both full-frame and APS-C digital SLRs, the lens will be initially available in Nikon mount followed by Canon and Sony versions.

http://www.dpreview.com/news/1003/10030 ... m300mm.asp

It's coming to Nikon first! Booyah!

[Elvizle]

I dont understand why ppl complain about the noise the lens make. It doesnt bother me at all. But I read about this I believe it was monday. I went to the tamron site and just did some light reading.

[Seanzky]

Personally, I don't mind the noise but many pros prefer "silent-wave" focusing motors because it's better for their line of work. In weddings for example, photographers try to be as discreet as possible. As a wedding photographer, you want to be like a ghost just there to capture the moment --not trying to draw all the attention. What the new Tamron "USD" does aside from silence the focusing is speed up the focusing itself. Now that's what I care about.