Dropped to 2500.
Come on Guys this a sweets lens! Jack at Getdpi says this is the sharpest lens of the whole Phaseone/Mamiya Line up. Its true too! Its amazing. I've owned the the 200 2.8 APO and its so soft comparatively. The 200 also won't close focus for portraits. The 150 LS version doesn't have the "look" and isn't as sharp wide open. This is your go to for headshots and anything where longer/compression is needed.
See here:
http://www.getdpi.com/forum/lens-and-accessory-reviews/15710-mamiya-lens-overview.html