Hello,
I'm using an Arca Swiss F-Metric 4x5, which now has the problem
that the front standard swing guide/ruler has become loose
and can be turned left and right by finger.
(first and second images)
See the red arrow in the first and second images,
turning the ruler disc, I can turn it from 0 to -2°,
which can become a problem with extreme wide angle lenses, so I'd like to "repair" the zero retent.
When I remove the front format frame (which holds the lens),
I can see an "imbus" / "hex key" skrew (third image)
but I can't seem to turn it, though I didn't really dare to force it brutally.
--> Any idea how to tighten the swing base?
--> What's the yellow thing right to the hex skrew?
Best regards and many thanks,
Martin
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