fStopJojo wrote:
From most reports, it's quite a good lens optically that is lighter in weight than most of its peers. Build-feel is standard Tamron. And of course, it lacks a ring USM/HSM unit with no FTM function. But optically, reports are generally very high.
Once again, hate to agree with Jojo, but pretty much agree. If you want lowest price for very good level of optics, light weight, and don't need less than 200mm, this lens maybe the way to go.
Photozone.de rates the sharpness better than other supertelephotos such as sigma 50-500 and Canon 100-400. However, these lenses have a bit more range and are more versatile as well.