| Joined: | Wed Apr 11th, 2012 |
| Location: | Flint, North Wales, United Kingdom |
| Posts: | 1245 |
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first off j.k it will a/f on any camera as it fools the camera into thinking its a larger aperture somehow .
in real life use i can only add what i have garnered from reading through various forums etc ,on static subjects i.e birds in bushes etc it performs exceedingly well right through the range .
there have been a lot of reports of a/f not locking onto b.i.f at between 400-600mm ,but after reading them properly and digesting i reckon that 95% of them are simply user error .some of the things i have picked up on include .i.s switched on while on tripod,multi point a/f being used instead of single point ,not locking on to seagulls in flight against a grey sky and so on .
what we have to remember is its a sub £1000 lens so the lower end users are going to grab at it ,the experienced guys with the pro bodies and big white lenses won't be testing or using it so the majority of complaints are coming from people who either can't or don't know how to set there camera up properly to use with a long reach lens like this .
the shots i have seen from pro body cameras i.e 1D or 5D class bodies have been excellent as indeed the ones from experienced users have been.
my personal view is that tamron released this at the wrong time of year as summer would have been better for its testing .