2004منتدى Cameras (Film/Video/HD)
تشغيل كاميرا فيديو من طراز سوني 900 HD على جهاز مراقبة الحركة
مضى على هذا 22 سنة. قد تكون المعدات والأسعار قد تغيّرت منذ ذلك الحين.
ما توصّل إليه النقاش
- كاميرا Sony 900 تسحب حوالي 70 واط من الطاقة عندما تستخدم مع محول إيفريتز أسفل المرفق، مما يجعلها غالبة للكهرباء.
- ولا يوصى باستخدام الكاميرا من الـ sled بسبب ارتفاع استهلاك الطاقة في هذه التشكيلة.
- استخدام البطاريات على متن الكاميرا هو نهج بديل قابل للتطبيق.
- An Evertz down converter can be used to step down the HD signal to NTSC for compatibility with a TB-6 motion control system.
- The camera with a zoom lens becomes quite long and heavy, and functions as a significant wind catcher.
- The low-mode handle operates smoothly on this camera.
- The requirement for stiff HD-SDI coaxial cable can be problematic, as engineers may want to monitor the actual HD image rather than the converted signal.
- The camera balanced acceptably on an Ultimate Sled with BarTech follow focus in field conditions.
- Some operators have used a black and white video camera mounted to the eyepiece as an alternative to using a down converter for monitoring.
- Preston motors are suitable for focus control with this camera setup.
يعتمد على
- The experience described is from 2004 with older converter technology.
- Reports indicate that smaller and lighter down converters may have become available after the time of these discussions.
- Wind conditions during one reported use were extreme, which may not reflect typical operating scenarios.
- One user expressed a strong negative opinion about the overall system without providing exhaustive technical justification.
- The specific issues with HD-SDI cable requirements appear to depend on engineering preferences and monitoring needs.
- No comprehensive testing of all documented quirks was completed during the forum discussion.
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