Today I’m comparing the new Sony 85mm f/1.4 G Master against the two full frame portrait primes I happen to own.  I know many would like to see a comparison with the Batis 85mm , but alas, I do not have one handy.  Still, this is an interesting comparison, as it pits the newest ultra-high end portrait prime against two pretty significant underdogs: the ultra- cheap, but highly regarded Rokinon (Samyang) 85mm f/1.4, and my trust Canon 100mm f/2, a design that’s 25 years old, but still a seriously quality optic (that happens to work great on Sony with a smart adapter). The 85mm f/1.4 GM comes in at a whopping $1800, while the other two options here are a little easier on the wallet.  The Canon 100mm f/2 retails for just $500, though you’ll need to add in the cost of an AF adapter if you don’t already own one.  The Rokinon is an astoundingly cheap $270…yet shares the same ultra-fast maximum aperture with the Sony.  So is the extra grand+ worth the cost?