2010Operating forum
Executing smooth whip pans with camera cranes while managing dynamic balance and headroom adjustments
16 years old. Gear and prices may have changed since.
What the thread found
- Whip pans require the crane post to remain level to its axis of rotation, so headroom trimming should be achieved by adjusting boom height rather than tilting the post.
- Dynamic balance must be maintained during whip pans; when out of balance, the pan becomes difficult to control smoothly.
- A tilt head allows a tilted camera to perform whip pans while keeping the sled itself in dynamic balance and vertically oriented.
- Performing whip pans at a slower speed maintains better control throughout the maneuver and still appears fast on screen, improving the likelihood of accurate end framing.
- Whip pans can be cut together seamlessly in editing, especially when motion blur is strong, making them useful for creating hidden cut points in sequences.
- With film cameras using standard magazines where weight changes as film runs through, dynamic balance shifts during the shot and must be anticipated based on when the whip pan occurs.
- Professional-grade film magazines with vertical displacement or zero displacement design minimize balance changes during film transport, unlike standard magazines.
- Motion blur, faster pan speed, and snapped focus all help whip pans cut together unnoticeably in post-production.
- When trimming headroom between two actors at very different heights during a 180-degree whip pan, the post can be tilted if balanced directly between the two heights.
Depends on
- Advice applies primarily to video cameras and film cameras with controllable magazine designs; standard film magazines create ongoing balance shifts.
- The 180-degree whip pan scenario between two actors at different heights is rare and difficult to execute.
- Building and testing custom leveling heads requires experimentation and is not well documented.
- No detailed procedures are provided for calculating optimal dynamic balance timing with changing film magazine weight.