Check with NASA . . . I think they already have one . . . of course it's observatory mounted ;DJRS said:8-500mm f/1.2 IS L
Tov said:waiting for an update on the 180 macro.
DavidGMiles said:Only the 200-400mm f/4 - preferably before my trip to photograph Puffins in June - or certainly before Kenya in September
darktiger said:24-105L f/2.8 IS II