The day I bought my A7R IV the first lens on my list to buy was the 90mm f/2.8 macro.....and it has been my favorite lens ever since (although jostling for rank with the 100-400mm, which I also love, but for different reasons). From November 2019 through June 2020 it seemed as though that 90mm macro was glued to my camera, and of course during flower blooming season it was going out-and-about with me frequently. It is a stellar lens, absolutely well worth every penny! Buy it -- you will be happy you did.