2008Forum Batteries/Power
Systèmes de batteries pour l'alimentation des caméras de film comme l'Arriflex 435 à différents taux de cadre
Il y a 18 ans. Le matériel et les prix ont peut-être changé depuis.
Ce que le fil a révélé
- A three-battery system provides better power delivery and runtime than two-battery setups for film cameras.
- Dionic 90 batteries can run a 435 camera up to 48 frames per second, but adding a nickel-cadmium battery like a Proformer enables higher frame rates up to 150 fps.
- Hytron batteries are viable for film cameras but decline in performance after one to two years of use, especially for high-speed operation.
- Different battery chemistries can be safely combined in series to meet the power demands of high-draw cameras, but should never be connected in parallel.
- Nickel-cadmium batteries are necessary for film camera operation while lithium-ion is better suited for digital cameras.
- Dionic 90 batteries can legally be carried as hand luggage on aircraft under current regulations, whereas older battery types may face fewer travel restrictions.
- Two Dionic 90 batteries alone are insufficient to power a 435 camera reliably.
- A system designed for the power requirements of a 435 camera will reliably run any other film camera model.
Dépend de
- The power performance of lithium-ion and nickel-cadmium batteries degrades significantly with age.
- Lithium-ion batteries cannot be checked as baggage on aircraft, which may limit their use for traveling crews.
- Hytron 50 batteries showed capability for 120 fps operation on a 435, but this claim was not universally confirmed across different usage scenarios.
- One participant used three Hytron 50 batteries successfully but acknowledged this outcome might be dependent on battery age.
- The Proformer battery model discussed is no longer in production.
- There is conflicting information about whether newer high-draw lithium-ion options like the Tiffen Powercube are optimal choices given compatibility issues with existing equipment.