Hi
I am thinking of buying a zoom in the region of 70-200 f2.8
I have had a look at the canon range and found an excellent review site below
Canon Digital Camera & Lens Reviews
I am wondering if there is a site offering in depth reviews of Sigma and Tamron.
of lenses of a similar spec.Also can anyone advise me if the Sigma image stabilisation
is comparable to the Canon.
I am looking for f2.8 because I may need to shoot in Indoor environments
Please can you share your experiences