Canon EF 70-200mm f4L IS USM hand grip with fully automatic or manual

with fully automatic or manual operation

but when you absolutely positively got to photograph everybody in the room

and it records to Compact Flash cards

if you don't mind carrying a bit of extra weight (it's about 3kg by itself)

Original Leitz catalog featuring the M3

Canon EF 70-200mm f4L IS USM hand grip with fully automatic or manualThe Canon 70 200mm f4L IS USM is a pro quality telephoto zoom lens for any Canon EF camera. With sharp glass, quick focusing, an effective image stabilizer, and a f4 constant aperture throughout the zoom rangeall in a compact and lightweight packagethis is an indispensable lens for shooting events or sports. Light cosmetic wear. Includes original hood, aftermarket tripod mount.