Hi, I'm looking to make a specific 8x10 camera solely for the purpose of photomacrography. Hopefully set at 2x life size. My idea is to create the camera out of PVC pipe with a small bellows on either end to allow for camera movements, connected to the front and back standards. Not needing shift, just tilt and swing (both front & back) so I plan to use some fairly simple mechanism for that (ideas?). What I'm wanting to know is where do I go for info on coverage of lenses. I plan to use an enlarging lens (better characteristics for Macro), I've been told a 150mm may be about right, and I'm obviously after a small f-stop. I'll be using quite large tilts, especially front tilts to change plane of sharpness. Any info greatly appreciated. And the biggest issue, what do people use when building their cameras to ensure plane of lens is parralel to plane of GG/Film? Is there some mechanism to measure this any better than using a tape measure?