關(guān)于佳能EOS7D相機(jī)在使用慢門拍攝時(shí)出現(xiàn)“Err 30”的問題

Err 30 報(bào)錯(cuò)應(yīng)該是快門相關(guān)問題，和閃存卡、電池?zé)o關(guān)。
這是canon的錯(cuò)誤代碼對(duì)照表:
10 Malfunctions related to files have been detected.(*1)
20 Malfunctions related to the mechanical have been detected.
30 Malfunctions related to the shutter have been detected.
40 Malfunctions related to the power source have been detected.
50 Malfunctions related to the electric control have been detected.
70 Malfunctions related to images have been detected.
80 Malfunctions related to the electric control or images have been detected.
99 Malfunctions related to the mechanical charge mechanism have been detected.
*1: Err 10 is only displayed on the EOS-1Ds Mark III and other error numbers are shared.