2009منتدى Operating
الخبرة العملية باستخدام عدسات طويلة لطول التركيز مع Steadicam معدات
مضى على هذا 17 سنة. قد تكون المعدات والأسعار قد تغيّرت منذ ذلك الحين.
موضع خلافاختلف المشاركون ولم يصلوا إلى خلاصة. اقرأ النتائج على أنها مواقف، لا إجابة.
ما توصّل إليه النقاش
- The longest focal lengths typically used with Steadicam range from 100mm to 150mm, with some operators occasionally reached 180mm or 200mm.
- وعموماً، فإن طول الموصلات أطول من 75 ملم يخلق تحديات أكبر بالنسبة لضغط التركيز مقارنة بالمشغل، لا سيما حسب نوع الرصاص.
- Longer lenses offer an advantage in keeping the horizon level since they show level errors less obviously than wide lenses do.
- Focus pulling without a proper monitor becomes more reactive rather than predictive, requiring the image to go soft before returning to sharpness.
- Shooting with HD cameras and 2/3-inch sensors differs from full-frame formats in terms of focus pulling difficulty.
- A 75mm lens without focus assist equipment on a 2/3-inch HD camera presented significant operational difficulty.
يعتمد على
- The experience comes from shooting practices around 2009 and may not reflect current camera technology.
- Observations about HD focus pulling were mixed and appeared dependent on individual operator skill and equipment setup.
- Some claims about camera sensor size advantages for focus pulling were contested without resolution.
- The single example of a 150mm-plus shot involved a complex push through a scene that could have been achieved differently.