Unverified80% confidenceFactTime unknown
球形云台的球体直径越大承重和稳定性越高，主流全画幅系统选球径≥40mm，中画幅或重型镜头选≥50mm
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Unverified球形云台看球体直径：36mm以上球径承重与稳定性明显更好，全画幅+大三元建议球径≥40mm，微单便携套装44mm以下可选88% similarUnverified球形云台的最大承重应至少为「机身+最重镜头」总重的2倍，否则大仰角构图时会产生缓慢下垂（低头现象）。例如相机套装2kg则应选承重≥4kg的云台85% similarUnverified球形云台承重需预留2倍余量：标称承重10kg的球台实际稳定支撑长焦镜头组合应控制在5kg以内，否则锁死后仍会缓慢下垂（球头蠕变）80% similarUnverified球台球体直径是承重能力的核心指标：直径≥44mm可稳定支撑全画幅+大三元；直径36mm级别只适合微单和轻量单反，直径小于30mm不建议上单反75% similarUnverified球头直径决定承重和锁定牢固度，全画幅相机配大镜头至少选36mm以上球头，＜32mm的球头带长焦易出现锁定后下垂71% similar
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