I'm not sure how much better a 4x5 negative will be in comparison to a 6x6, but the difference is noticeable to me, even on flickr. My reason for getting into 4x5 is for the larger negative mostly. My 6x6 negatives blow my 35mm negatives out of the water so I'd like to give 4x5 a try. My photographic interests is in on-tripod available-light portraits. I want something that is light, sturdy, and easy to carry and use. I don't care for many if any movements, a rangefinder, or 120 backs. I don't think that those will be very useful (but I may be wrong ofcourse). Now from my limited research it seems that a folder fits my criteria pretty well. The graphics seem to be the best-value while Linof's seem to be the cream of the crop. The focal length that I'd want to start off with is a 150mm. I need to do more research, but maybe a little help can narrow it down a bit. Some questions: 1. Which camera models would you recommend that I look into? What what would be a starting price? I'd probably start with a 150mm f5.6 lens. If I were to start today I'd probably go with a graphic but if a Linof isn't that much more, then I'd start with that. 2. What mount do I need for the lenses? I looked at keh.com and I see db mount, 32 mount, 42 mount. The lenses, are universal, right? Would a 150mm f5.6 lens fold into my camera? I'd want a lens that does. 3. Any particular brand of lens I should look into? Or is this a Canon vs Nikon Vs Leica Vs Zeiss type of thing? I see Fujinon's, Sinaron, Symmar, etc. I really do not know what qualities they have but I figured that the jump from MF to LF would make a bigger difference than between brands. 4. What do I need to start. I guess a tripod, film, 4x5 holders, dark cloth, lens (board too?), and a folder camera? Are film backs universal?