2011Follow Focus forum
Achieving acceptable focus depth when operating Steadicam with interchangeable lens cameras on tight single-day shoots
15 years old. Gear and prices may have changed since.
What the thread found
- Smaller camera sensors like the Panasonic HMC-150 with 1/3-inch imager provide significantly greater depth of field compared to full-frame cameras like the Canon 5D, making it easier to maintain focus during movement without a dedicated focus puller.
- Depth of field is controlled by multiple interdependent factors including sensor size, focal length, aperture setting, lighting levels, ISO sensitivity, and shutter speed—there is no single lens choice that solves focus problems without addressing these other variables.
- Professional focus pulling with inexperienced operators requires extensive practice and typically involves tethering to an external HD monitor, adding complexity to single-day shoot logistics.
- Presetting focus to hyperfocal distance and blocking shots to keep talent within an acceptable focus range allows Steadicam operation with shallow-aperture interchangeable lens cameras without dedicated focus pullers.
- Wide-angle lenses like 17-35mm zooms on full-frame cameras provide greater depth of field than telephoto options, though they introduce wider framing that may not match directorial preferences.
- Upgrade to an external HD monitor does not automatically make a Standard Definition Steadicam rig capable of HD operation if the internal video wiring cannot support HD signal transmission.
- Music video production on single-day schedules is feasible but demands careful pre-production planning, thorough crew preparation, and realistic expectation-setting with directors about what can be achieved operationally.
Depends on
- Advice assumes standard production budgets and access to rental equipment; owner planned to purchase own lenses and camera.
- Director's specific resistance to wide-angle framing was stated as a constraint but no alternative focal length preference was defined in discussion.
- No testing or results from proposed shallow-depth-of-field Steadicam setups on the Canon 5D were documented in thread.
- Suggestions for wider zoom lenses conflicted with director's stated preference for less wide framing.
Parts
Same gear or parts
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