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Question: Does the GR-2 have a slip clutch for the full 360° rotation, or is the 10° fine adjustment self-locking with a stop? After all, the small GR-2 (not G2) has a continuous scale from 0 to 360 degrees, so the top part should also be able to rotate 360 degrees. However, there is no other locking lever or similar mechanism visible. If there is a free-running mechanism, what is the holding force if the GR-2 is used with the vertical axis tilted while pointing upwards (e.g., for astrophotography), and one wants to prevent the camera or a small telescope from rotating sideways when using a heavy, front-heavy lens? (On the Leofoto G2, the movements of the two gear axes are limited to ± 10 degrees via self-locking fine adjustments without a free-running mechanism, so there is no risk of the fine adjustment being disturbed by the imbalance of the camera setup.) I would greatly appreciate a response. ``` Best regards, Ch. Blümel
Answer from Gast
Answer: The Leofoto GR-2 geared pan/tilt adapter does not have a slip clutch for continuous 360° rotation. Instead, as you correctly guessed, it uses two self-locking fine-adjustment knobs, each offering an adjustment range of ±10°. The GR-2 is not designed for a full 360° rotation. It is intended for the precise fine-tuning of a camera or telescope on an already aligned tripod head. Unlike a freely rotating pan/tilt head (with a slip clutch or friction system), the GR-2 maintains its position stably and without play, even with a tilted vertical axis or front-heavy equipment. The self-locking gear axes prevent the camera from shifting or sagging on its own, even with heavier lenses – a clear advantage for macro, architectural, or astrophotography.
Translated from: German
