Photo123abc wrote in post #16124508
I decided to buy new lens, probably going for Sigma 105mm f/2.8 EX DG OS HMS or Canon 100mm f/2.8 USM macro. Most likely Sigma because it has image stabilator.
However, I am going to save that Tamron for now, and when I get tired of it, I open it and check whats inside.
I'd probably buy the Canon over the Sigma. For one thing, OS is of little help at macro magnifications. Also, the Sigma can't be fitted with a tripod ring, the Canon can (optionally). A tripod ring is a very nice accessory to have on a macro lens.
I do like that the Sigma has a three zone focus limiter, compared to the two zone on the Canon (the newer Canon 100/2.8L IS has a three zone limiter).
I also like that the Sigma comes with a lens hood... well actually with two: one matched to the lens for use on full frame, the other for crop cameras. The Canon 100/2.8 USM's lens hood is sold separately and is quite large.
But I'd still probably save some money and get the Canon 100/2.8 USM over the Sigma 105 OS... because the IQ is tops, it can be fitted with a tripod ring, and I don't need stabilization on a macro lens because it's of little help at higher magnifications.