lennartsw wrote in post #15991111
The Tamron 24-70mm f/2.8 is almost as good as the Canon 24-70 II, costs half the price (1000$ less) and has image stabilization (or vibration control how Tamron calls it).
Only the corners are just a bit worse compared to the 24-70 II. You won't see it on your 7D and it is not bad at all on full frame. Auto focus is a bit slower and it has more distortion which can be easily corrected.
It is a better lens than the first version of Canon 24-70 for the same price.
The 24-70mm II is lauded for it's sharpness, but what I find equally impressive is it's colour and contrast.
The problem with the Tamron is the bokeh isn't very good and for this reason I would suggest the Sigma 24-70mm if you can't afford the Canon.
If you want to go with primes: I would recommend the Sigma 50mm f/1.4 which is a bit more expensive than the Canon 50mm f/1.4 lens but if you get a good copy it is almost as good as Canon's 50mm f/1.2L.
If you move to full frame or want a bit telephoto lens on crop the 85mm f/1.8 and 100mm f/2 are both great lenses. 85mm should be more useful on crop and on full frame it depends on your shooting style.
Totally, the 50mm Sigma produces fantastic images and has amazing bokeh. But I find it's build quality questionable.. seeing as it seems to suck up dust like a vaccuum cleaner, for some reason I have quite a few largish specs between the elements.
The Sigma 85mm 1.4 is also a good alternative to the Canon 85mm 1.8, the Sigma 85mm is actually pretty close to the Canon 85mm 1.2 in image quality at a much lower price, in fact it rates as sharper than the Canon and has a warmer colour tone. Sigma's 35mm 1.4 is also great, Sigma seems to do a great job with primes but a mediocre job with zooms.