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Been happy with 72b, never tested though. The 40a 35-135 seems really good. Was happy with 22a 35-135 in film. The 35-80 2.8-3.8 has a bit of flare but seems really good, maybe one of the best. The 300 2.8 isn't bad, usable wide open, a bit of haze wide open like many older lenses, but usable. Just got 44a 28-70 which seems pretty good. The 60-300 is the sharpest xx-300 zoom on the long end that I have tested. The plasticy 28-70 (159a?) is really good at 28, low flare, but corners and out a bit at 70 and maybe even 50 are bad, 52mm filter, very light. 70-210 4/5.6 158a is very small and light. The corners aren't so good but for these focal lengths many people might be ok with that, or just use it on crop, same with 28-70. Center fine. Very tiny.
Always liked tamron due to the amount of metal in construction in their 80's lenses. Used the 80-210 quite a bit, has a great macro, 1:2.8, at 200. Poor man's 200 macro. Probably not that great a lens, but like it. Now that this stuff is cheap can buy the stuff I slavered over in the 90's but couldn't afford. And the 40a may be one of the best 35-135 lenses out there.
Great site for tamron: Adaptall-2.org
Has Modern Photo test results for many of the lenses.