I am currently trying to round out my kit. I use an EM-10 with the Panasonic 12-32, Oly 25 and 40-150. I would like to have a fast medium telephoto. I am deciding between the 45, 60 macro or 75. The 45 is the cheapest and probably most versatile, the 60 has macro and a little more reach, and the 75 is, well, the 75. I will use it mostly as a portrait lens, both full body and head and shoulders for my kids. It will also get some use as a landscape lens for compression and low light shots. My main issue is working distance. How much room do you need to effectively frame an outdoor full body portrait with the 75? I know I can, and have put the 40-150 on and test it, but I'd like to know your thoughts on this. I previously had the 45 and liked it a lot. I won't shoot much macro, but the 60 would be nice for the occasional shot. I really want the 75, but I just have this feeling that it will travel with me and not get used much because it is too long. If you have the 75 and 45, which gets the most use?