Minolta 300mm f/4 HS APO G
I have been using a Tamron 200-500 with my Sony A77. Though pleased with the results I decided to open the vault and use my old Minolta 300 with a 1.4 converter.
To say he least I was blown away by the results. Quick to focus and sharp as a tack.
I forgot how good Minolta glass is. I will be using this combo a lot more in the future.