Decent inexpensive wireless follow focus with a thumbwheel accessory.
Your card will be charged when the owner accepts your request. Cancel within 2 hours of acceptance and you will receive a full refund. Cancel within 48 hours of the rental start date and you will receive a 50% refund. Cancel within 24 hours of the rental start date and the rental may be non-refundable. Cancellation fees are imposed at owner's discretion.