bobiscuit wrote in post #16204275
I'm upgrading to full frame soon (6D), and will need to replace my standard zoom. At the moment I use a Sigma 18-50 f/2.8-4.5 OS HSM which I'm very happy with, but is not full-frame compatible.
I used to have the Tamron 28-75 on a Sony DSLR and loved it, but I think on full-frame the edges will be too soft and I would rather not go back to the slow & noisy focus of the Tamron.
Stabilisation is not essential, and f4 is OK.
Budget is very low! If I could afford the Canon 24-70 f2.8, that would be my choice... But I can't.
So are there any other low-budget options?
The Tamron 28-75 is the low budget option. (For me, the edges, while not perfect, were not TOOOO bad on the wide end, if not quite there especially below f/8 and better than the other options 28-135 IS (MUCH worse) and 24-105L (a little bit worse). On the long end the edges get some weird double bokeh for stuff that is just out of focus, the 24-105 may be free of that (although I thought it did even worse, as I said, for corners, edges at 24-30mm).
To do better on FF you need either certain primes (some are lowish budget sorta, 24 2.8 IS, 28 2.8 IS, 35 2, 35 2 IS, etc.) or the $1025 Canon 24-70 f/4 IS or the $1300 Tamron 24-70 VC or the $2000 Canon 24-70 II. Otherwise you just live with it and decide between the various trade-offs of the Tamron 28-75 (f/2.8, a bit sharper at the borders on the wide side and a bit sharper even center frame across the range and apertures, a little bit less expensive (it used to be hugely so until recently when the 24-105 fell to like $650 all but new split from kits), much smaller and lighter) vs 24-105 (much faster AF, more range on both ends, IS, nicer outer edge bokeh at the long end).