Sometimes I feel a bit tempted by the 75/1.8, it seems to be such a great lens. On the other hand I already have the 35-100/2.8, which isn't exactly a bad lens. Does anyone have both, and for a good reason? Here are my thoughts on the issue. The 75 is one of the sharpest lenses available for any camera system, but the panasonic cannot be called soft by any standard. The 75 is more than a stop faster, but f/2.8 isn't slow. I'll roughly double the shutter speed in the same light, and I'll get shallower DOF. However DOF is already rather shallow at f/2.8 with such a long lens. The 75 is built like a tank, the Panasonic is nearly built like a tank. THe 75 isn't weather sealed, the 35-100 is. But I guess any lens that's built like a tank can withstand a little moisture anyway. The 75 is smaller and lighter, but two lenses with similar specs weigh more than one. Filling up holes in my lens range probably makes more sense than getting another plug to the same hole, giving that my supply of money isn't infinite. Any thoughts? Did I miss anything? Oh yes, the black 75 looks gorgeous on the EM-1. Well well, the important bit is getting nice photos, having gear that looks good is second priority.