Tokina (Click here) published more info about the upcoming new 300mm f/6.3 lens. One of my japanese readers translated the text (Thanks!):
The good: Still looks good and under 300grams.
The bad: Still a month away.
The ugly: 40000YEN (370 Euro/$490)!!!! WTF. I have a 500mm T-Mount from Bower for 120usd.
Yep, it looks good and it performs good but if you don’t care about using big lenses and adapters you have plenty of other options: Bower mirror (Click here to see on eBay), Minolta mirror (here on eBay), Centon Mirror (here on eBay), Spiratone Mirror (here on eBay), Opteka Mirror (here on eBay)….
Below you can see the MTF chart of the Tokina