解決方案
[AF：短片伺服自動對焦] 設定為 [啟用] 時，可設定 EOS R5/EOS R6 的 [短片伺服自動對焦速度]。另外，此功能只在使用以下兼容在短片拍攝期間的慢速對焦轉換的鏡頭時啟用。(2009年或之後發佈的 USM 鏡頭及兼容此功能的 STM 鏡頭。)
RF35mm F1.8 MACRO IS STM
RF50mm F1.2 L USM
RF85mm F1.2 L USM
RF85mm F1.2 L USM DS
RF85mm F2 MACRO IS STM
RF600mm F11 IS STM
RF800mm F11 IS STM
RF15-35mm F2.8 L IS USM
RF24-70mm F2.8 L IS USM
RF24-105mm F4 L IS USM
RF24-240mm F4-6.3 IS USM
RF28-70mm F2 L USM
RF70-200mm F2.8 L IS USM
EF24mm f/2.8 IS USM
EF28mm f/2.8 IS USM
EF35mm f/1.4L II USM
EF35mm f/2 IS USM
EF40mm f/2.8 STM
EF50mm f/1.8 STM
EF85mm f/1.4L IS USM
EF100mm f/2.8L Macro IS USM
EF300mm f/2.8L IS II USM
EF400mm f/2.8L IS II USM
EF400mm f/2.8L IS III USM
EF400mm f/4 DO IS II USM
EF500mm f/4L IS II USM
EF600mm f/4L IS II USM
EF600mm f/4L IS III USM
EF8-15mm f/4L Fisheye USM
EF11-24mm f/4L USM
EF16-35mm f/2.8L III USM
EF16-35mm f/4L IS USM
EF24-105mm f/3.5-5.6 IS STM
EF24-105mm f/4L IS II USM
EF24-70mm f/2.8L II USM
EF24-70mm f/4L IS USM
EF70-200mm f/2.8L IS II USM
EF70-200mm f/2.8L IS III USM
EF70-200mm f/4L IS II USM
EF70-300mm f/4-5.6 IS II USM
EF70-300mm f/4-5.6L IS USM
EF100-400mm f/4.5-5.6L IS II USM
EF200-400mm f/4L IS USM Extender 1.4x
EF-S24mm f/2.8 STM
EF-S35mm f/2.8 Macro IS STM
EF-S10-18mm f/4.5-5.6 IS STM
EF-S15-85mm f/3.5-5.6 IS USM
EF-S18-55mm f/3.5-5.6 IS STM
EF-S18-55mm f/4-5.6 IS STM
EF-S18-135mm f/3.5-5.6 IS USM
EF-S18-135mm f/3.5-5.6 IS STM
EF-S55-250mm f/4-5.6 IS STM
NOTE
