2008Forum Batteries/Power
Batterieauswahl und Mengenanforderungen für die Stromversorgung von 35-mm- und HD-Kinokameras auf stabilisierten Geräten
18 Jahre alt. Geräte und Preise können sich seitdem geändert haben.
Was die Diskussion ergab
- Professionelle Kameraarbeit erfordert mindestens drei Batteriesätze, wobei vier bis fünf Sätze vorzuziehen sind, um stromhungrige Kameras, Ladegerätebeschränkungen und Batterieausfälle während voller Aufnahmetage zu berücksichtigen.
- Der Sony F900 zieht etwa 10 Ampere von der Kamera sowie weitere 5 Ampere für Rig-Zubehör, insgesamt 15 Ampere Last, die Trimpac-Batterien aufgrund übermäßiger Stromaufnahme nicht zuverlässig liefern können.
- Trimpac nickel-cadmium batteries have a long operational lifespan and can supply high current draw when needed, making them suitable for basic 35mm work when camera power requirements are moderate.
- Hytron 140 batteries provide approximately 40 minutes of runtime per charge on power-hungry cameras after several usage cycles, requiring four backup batteries for every battery on a charger with a 2.75-hour charge cycle.
- Dionic 90 batteries have proven reliable over multiple years and many charge cycles, successfully powering cameras ranging from 35mm formats to 435 at 96 frames per second.
- Operators successfully used six Trimpacs combined with two Hytron 120 batteries to power various camera formats including 35mm, 235, 435, Arricam, HD, and Silicon 2K over a four-year period.
- Trimpac batteries are wider than Hytron or Dionic models, creating potential interference with operator leg positioning during handheld rig operation.
- Lithium-ion batteries from certain manufacturers may have delayed delivery or reliability issues that warrant caution before commitment.
Hängt ab von
- Discussion focuses on stabilized rig power requirements and may not apply to other camera support methods.
- Runtime calculations are based on specific charger models and degrade with battery age and cycle count.
- F900 requirements mentioned but noted as likely to be sourced from rental equipment rather than personal batteries.
- Budget constraints mentioned by questioner may limit practical implementation of ideal battery quantity recommendations.
- The discussion does not establish definitive runtime specifications for Trimpac batteries with specific camera models.
- One negative experience with a specific lithium-ion battery manufacturer is mentioned without detailed technical analysis.