I had this dilemma recently, and in the end I went for the Tamron 70-200 VC. I tested it alongside the sigma and it was faster to focus and sharper, even wide open, it is good. In fact if you check out the reviews, it is every bit as good as the Canon L IS ii apart from at 200mm, where the canon is marginally better.
yeah because we never used our sigmas professionally in low light..
... that's a bit of a strange thing to say...if your shootng flowers on a nice sunny day your probaly not going to see enough differene to warrant the price... but if your shooting in poor light.. indooors wiht no flash or somehting like that.. the canon beats the others hands down..
like I say.. I did for years.. great lens... did you miss that bit on purpose ?
Would I swap the Sigma for the MKII Canon IS ? .... Yup, in a heartbeat.
Really, not what the video says, and having used the Tamron at an evening reception. I would tend to agree.but if your shooting in poor light.. indooors wiht no flash or somehting like that.. the canon beats the others hands down..
Would you pay an additional £800 for it?
The digital picture sharpness comparison shows the Tamron marginally better than the IS and marginally worse than the IS2.
The sigma OS falls behind them all.
I had this dilemma recently, and in the end I went for the Tamron 70-200 VC. I tested it alongside the sigma and it was faster to focus and sharper, even wide open, it is good. In fact if you check out the reviews, it is every bit as good as the Canon L IS ii apart from at 200mm, where the canon is marginally better.