Owned a Tamron SP90 XR Di II before;:)
tested the Sigma 150mm f/2.8 and 180mm f/3.5 Macro before;:)
and currently, owning/ using a Canon 100mm f/2.8 USM Macro.:thumbsup:
My opinion- Canoo 100mm given more sharp, more details and more contrast images;
Loving it very much.:heart::heart: