I am going on a mission trip to Namibia with my church in the coming months, and we will have a chance to go on a 2-day photo safari, and I was looking at renting a high-end L lens to take with me. Either a 28-300L, or the 100-400L if I go with the 28-300 f3.5-5.6L that would let me also take candid pictures inside the building, on the plane, during church services etc, and have enough zoom to capture some of the more distant wildlife on the photo safari. if I go with the 100-400 f4.5-5.6L it would limit my ability to take some shots, but it would give me a bit more magnification for the longer shots of the wildlife. I suppose I could always take my 24-105f/4L IS, then just swap lens to the 100-400 when I go on the safari. Has anyone ever rented a lens before? what to rent HELP! Thanks Tim Wanna kill these ads? We can help!