The is a comprehensive review of the new 90mm lens in Erwin Puts'Home page. The new lens is collapsible. Since I am a M5 user exclusively, that keeps me from getting one. I know I will cock the shutter before extending the lens, and my meter arm will be damaged.
That aside, the review is most interesting and the comparasons with other90/100MM leica lenses is startling. By the way, I have a munt collapsible 90MM that I no longer use.If anyone is interested, contact me off the forum.It includes both caps, hood, and hoodcap.