Archived posting to the Leica Users Group, 2001/06/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]mark@rabiner.cncoffice.com (Mark Rabiner)6/3/011:55 PM > Off topic like hell but what's your 4x5 macro trick!!!!??? > half of us will be tossing and turning unless we find out!!! No tricks, just working on that precision thing with a touch of KISS thrown in for good luck. I've set up Infinity Stops, on the Tech IV, for 3 different bellows extensions: 2" subject : 4.75" on film 1.5" subject : 4.75" on film 1" subject : 4.75" on film I've made 3 metal wire frames, proportional to the 4x5, which attatch to the compendium lens shade mounting wire at scored marks. The bellows are critically pre-focused to these frames, at these marks. The frames define the view of the 4x5 negative. So now I can simply walk up to a macro subject, put the subject in the frame, and fire. Bellows factor predetermined. Focus predetermined. No more under the black cloth moving the camera in and out, focusing, repeat, repeat, repeat. Linhof actually made a device for doing this with closeup work, more like 8x10 subject to 4x5 on film. But the ultra macro has to be custom engineered. Now the real tricks come into play with lighting large format macro subjects, as the front standards of the cameras are inches away from the subject, blocking all the light from the subject. Serious Question - Can anyone recommend a "Strobe Guru" who could wire an old ring light flash tube (I have 2) to fire from my Quantum T2 or X head? The plugs on these 2 ring lights are identical to the quantum tubes, but they don't fire. And I don't know which wire to put to which of the 4 prongs to make it work or conversely blow myself up. George