Tamron 35/1.4 is the one you want
or Sigma 28 or 40mm if you can compromise on FL.
Or just buy Sony and one of the new excellent E mount lenses. That's by far the best advice.
I had the Sigma, couldn’t justify the extra cost of the Canon.
Not yet... I am working on funds for A1 II, which could be A1 III by the time I am thereHave you switched to Sony yet ?