Originally posted by UncleVanya I’ve tried the Tak Bayonet and it’s really not great wide open. Even stopped down it can be a challenge to use, but perhaps like the fa 50 f1.4 the dreamy look wide open is exactly what you are interested in?
I think it could be copy variation. My Tak bayonet at f4/5.6 is better than my m75-150, and I think my 75-150 is a very good copy of the lens.
Both are capable but if I was strictly doing portraits I'd prefer the lower contrast and better sharpness of the Tak bayonet, while having the option for a dreamier (but still detailed) f2.8.
It offers more latitude in post and more options when shooting.
But to be honest you could get both for less than half the price of a tamron 90mm so I mean you could just do that.