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Zoom creep Zoom creep is a phenomenon in zoom lenses where the angle of view of the lens changes when gravity is allowed to freely act on it.〔https://support.nikonusa.com/app/answers/detail/a_id/13918/~/what-is-zoom-creep%3F〕 If the lens has a zoom ring, holding it when the lens is held upwards or downwards will prevent this change. In lenses with push-pull zoom, creep is prevented by holding the extending part of the lens. Some lenses, such as the Tamron SP AF 17-50mm f/2.8 XR Di II LD Aspherical ()〔http://www.tamron.eu/lenses/sp-af-17-50mm-f28-xr-di-ii-ld-aspherical-if/〕 and Canon EF-S 18-135mm f/3.5-5.6 IS STM,〔http://www.usa.canon.com/cusa/consumer/products/cameras/ef_lens_lineup/ef_s_18_135mm_f_3_5_5_6_is_stm〕 have a zoom lock to stop the effect. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Zoom creep」の詳細全文を読む
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