I'm not sure that an 85mm prime will be that beneficial, especially when you have the 70-200mm f2.8.
That was my initial thought too, but I changed my mind. I love shooting portraits, and the 50mm f/1.4 is not quite long enough for me, especially not once I go full frame. So I'd like something longer, with a large aperture for shooting in 'available darkness'. The 85mm has always been high on my wishlist, but only since I've been out shooting with just the 50mm, I think I'd really like the 85mm. Shooting with a collection of prime lenses really appeals to me, and the 85mm cannot be missed in that collection.
Yes Lah, a 500mm f/4 G SSM. It was said to be an f/4.5 first, but I've heard from reliable sources it's an f/4. Considering the absurd price of Sony's 300mm f/2.8, the 500mm f/4 can only be afforded by those lucky enough to have a good job, a lifetime worth of savings, or a winning ticket in the lottery. Oh well... one day...
- Bjorn -