Hi!
I consider replacing my pre-1984 6x9 Arca with the current F-line. Yaw-freeness and the micrometric Orbix® are the attractions, even though the weight would go up a little.
I have 2 reservations:
1- Martin Voigt told me on the phone, that the micrometric Orbix has indents ("Kugelrasten") every 3 degrees. If I think of the 90 degrees indents on the tilt and swing on my Arca, the small angles in the nearness of the indent are tricky if not impossible to set, because the standard has the tendency to snap into the indent.
Can Arca users of the micrometric Orbix comment on this?
2- My precondition is that I want to *calculate* the tilt and swing angles. I want to be able to set angles in the size of the lower values on the Rodenstock calculator, which means I want to be able to adjust the movements to a fraction of a degree. The scale for the swing has a scale of 5 degrees intervals on a pretty small radius. Even with visual interpolation, this would not do. Furthermore, on a photograph of the F-line, the swing scale on the front standard looks like it is almost invisible under the "lip" of the frame clamp.
Martin Voigt said in the phone there would be no place to attach a worm drive to that swing. On my old Arca, my machinist says he could easily mount such worm.
Do I have to choose between yaw-freeness and a visible and operative swing scale? Any bright ideas?
Kind regards -
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