** Wireless multi-flash shooting via radio or optical transmission is supported up to 1/128 in manual flash exposure mode.
*** 1/512 flash emission can be selected with manual flash setting. Manual high-speed sync is supported only up to 1/64.
^ A Macro Lite Adapter is necessary when attaching to the EF 100mm f/2.8L Macro IS USM (optional Macro Lite Adapter 67) and EF 180mm f/3.5L Macro USM (optional Macro Lite Adapter 72C) lenses.
When attaching EF and EF-S lenses to EOS M series cameras, the optional Mount Adapter EF-EOS M is necessary.