Quote:
Originally Posted by Steffen
For the purpose at hand (as per the Youtube clip) the knob seems a bit improvised. Could you not do it properly and use a timing pulley with matching belt? Those come in all shapes and sizes, including with set screw. The pulleys often have rims, so the belt won't slip off at the most inopportune moment.
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Thanks but NO thanks it is that one second removal I want to revert it back to manual focus and then back again, but thank you for taking the time to reply