I've been having fun playing around with a GXR and a variety of modules, including the A 12 that will take my old Leica and Nikon glass. Latest in a trail of several actual bargains, an IR modified 24-70 module with 4 varying strength IR filters, filter adapter and lens hood, etc. which I just got today. Have been snapping a bit with it, focus adjusted to infinity on full press. Results are dramatic, but unpredictable. If anyone can suggest a source for quick tips / IR for dummies, or a shortcut or two, I'd much appreciate it. I will attach one or two from the first dozen shots I took. Apparently the attachments didn't work.