METADATA PRODUCTION.
Lens developments are opening up the metadata highway running from capture to post. But there’s some way to travel before we achieve a seamless journey FULL META JACKET
WORDS. Phil Rhodes
C inema is the field of electronic imaging that works the technology hardest. Huge images once feasible only for stills can now be recorded at seriously slomo speeds. There’s some irony, then, that cinema lenses only recently started talking to cameras. In the broadest sense, concepts such as Arri LDS and the Cooke /i system are not a new idea. LDS goes back to 35mm cameras, at least as early as the Arricam ST from the turn of the millennium. Interest in this data from those working
in post came later – it was initially built to provide electronic readouts of focus distance and depth-of-field. The ability for lenses to report the position of their control rings was a welcome development for anyone interested in a high-resolution, easily viewable focus status display. Modern cameras often superimpose it on their monitoring outputs. Still, there was room for improvement. The first LDS lenses required end-to-end calibration at switch-on, while more recent LDS-2
57. JUNE 2022
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