I'm about to make my first foray into the LF world with the purchase of a 4x5 monorail camera. I've been looking around at different lenses and the like, and am slightly confused. Could someone please give an overview of lens boards? My biggest questions are 1)Do i have to buy a brand-specific lens board (i.e. a cambo board for a cambo camera)? 2)What's the deal with Copal shutters? I.e. what's the difference between a No. 1, or 0 or what have you, and how does that affect what board/lens I use? 3) Quality issues aside, are all 4x5 lenses created equally? Will any 4x5 lens work in any 4x5 camera, provided I have the correct board/shutter? Thanks in advance for any help.