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An evolving prime lineup.
Received a very cryptic email this AM about some upcoming lens upgrades. The following 3 lenses were mentioned.

50 f/1.2L II
Improved AF performance and new coatings. Optical elements to remain the same.

85 f/1.2L III
Improved AF speed and new coatings. Optical elements to remain the same.

135 f/2L IS
Image stabilization added, as well as the new coatings. Optical elements to remain the same.

Probability?
I’m not sure, I’ve received snippets of info about the 85 and 135 getting upgraded.

If all they’re doing with the 50 and 85 is adding new electronics and coatings to the lenses, it’s quite possible they’ll get an upgrade. Adding  IS to the 135L makes some sense.

I’m still surprised I haven’t heard anything about a 35L upgrade.

CR1 this one with a smaller grain of salt than you’d think.

680EX? The 580EX II will remain in the lineup.

Direct email quote.
An all new Top-Line Master Controller Flashgun tentatively named 680ex will be launched offering:

• Master/Slave
• GN 68 @ 105mm
• Separate Master/Slave switch previously found on 580EX
• Zone Control
• Better switches and improved Screen and Menu
• Fully Weathersealed
• Scheduled Launch Date: July-Dec 2010
• New Generation of Flashguns to be compatible with 40D onwards with Generation 2 Menu Interface.