2 usm fulltime mf yes the canon usm autofocus motor is legendary and it is faster more accurate and quieter than the tamron autofocus.
Tamron 17 50 2 8 vc full frame.
The tamron 17 50 2 8 sp xr di ii vc barrel finish is slightly textured and the markings are painted onto the barrel not engraved.
Tamron lenses deliver a superb fusion of performance and value enabling today s high resolution dslrs to perform at their peak.
New fast f 1 8 sp prime lens series.
Tamron sp 15 30mm f 2 8 di vc usd g2 lens for canon ef tamron tap in console with altura photo essential accessory and travel bundle 4 9 out of 5 stars 17 1 199 00 1 199.
Tamron calls this the tamron 17 50mm f 2 8 xr di ii vc ld aspherical if.
Although a friend has.
The barrel is made of a plastic material but the lens mount is metal.
Extra refractive index glass allows smaller size di ii.
Vibration control same as nikon vr or canon is.
The di ii designation indicates that the tamron 17 50 2 8 di ii vc is a lens designed for use only with crop sensor cameras.
Lens line up includes a trio of fast f 2 8 sp zooms.
It belongs to the super performance sp class of tamron lenses distinguished by ultra high optical and mechanical quality.
49 0 221 66 95 44 404.
And world renown macro lenses.
Probably all comes from hoya.
This marketing baloney means.
Same as nikon s ed or canon s ud glass.
That was true of the tamron predecessor pre vc tamron af 17 50mm f 2 8 xr di ii ld sp zl aspherical if zoom lens for canon digital slr cameras and it remains true in this model.
Only works on 1 6x and dx cameras won t work on 1 3x or 35mm or full frame cameras.
The image circle of the lens fully covers an aps c sized sensor but does not cover a full frame 36mm x 24mm sensor.
Focal length markings for 17mm 24mm 35mm and 50mm are printed on the barrel.