2005منتدى Brackets/Widgets
بناء صنبور فيديو لكاميرات المراقبة الهوائية باستخدام الكاميرات الصغيرة
مضى على هذا 21 سنة. قد تكون المعدات والأسعار قد تغيّرت منذ ذلك الحين.
ما توصّل إليه النقاش
- الكاميرات الصغيرة للأشعة المقطعية تكافح مع التركيز الدقيق في مدى 1-3 بوصة اللازمة لمسح العين.
- وتتاح كاميرات CCD ذات عدسات C-mount ومكوكات إلكترونية في أحجام مختلفة ويمكن أن تحقق تركيزاً وثيقاً عند الحاجة.
- A monochrome camera positioned at an eyepiece can work for monitoring HD video, though rolling black bars may appear when shooting at 30i, 30p, or 24p frame rates.
- Using a small CCD camera as an eyepiece tap requires removing the viewfinder lens and focusing the camera lens on the LCD screen and indicator lights.
- Field coverage and focus alignment between the camera lens and the eyepiece optics are critical technical challenges.
- The rolling scan artifacts from interlaced and progressive frame rates can interfere with video tap image quality.
- Cameras with Hirose and BNC connectors are better suited for professional monitoring applications.
- Close focus capability on CCD cameras may require slightly unscrewing the C-mount lens to achieve the required depth of field.
يعتمد على
- The discussion focuses on older HD camera models from the mid-2000s like the Varicam and F900.
- One contributor mentions availability issues specific to London at the time of writing.
- Rolling bar artifacts are noted but not fully resolved as a technical problem.
- Overall exposure evenness and focus uniformity are mentioned as tricky but no detailed solutions are provided.
- Price and availability of suitable components appear limited and variable by region.