Unverified90% confidenceDecision RuleTime unknown
手机望远镜拍摄放大倍数超过20x时必须配脚架，手持状态下超过10x就无法获得清晰画面，因为望远镜倍数与抖动幅度成正比放大
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Unverified高倍率下手持抖动被同步放大，光学放大≥60倍的数码望远镜必须搭配三脚架使用，缺少防抖或稳定支撑时60倍以上画面几乎无法辨认83% similarUnverified手机镜头光心与望远镜目镜光轴的对齐误差超过0.5mm就会出现明显暗角(vignetting)，可微调XY轴的夹持器比固定式画质好得多82% similarUnverified手机主摄本身广角焦段（等效13-15mm）已很广，外接超广角镜头会叠加畸变，导致四角画质崩坏严重；主摄拍全景时外置广角性价比低，反而长焦附加镜提升更明显82% similarUnverified外置长焦镜头的实际光学放大倍数应叠加手机原生光学变焦计算：手机自带3x光学+外置2x镜头才能达到有效6x光学，单纯看外置镜头标称倍数会误判实际焦段80% similar
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