Canon Multi-Accessory Shoe Adapter AD-E1 Compatible Accessories Speedlite EL-1 / Speedlite 600EX II-RT / Speedlite 600EX-RT / Speedlite 580EX II / Speedlite Transmitter ST-E3-RT (including Ver. 2) / Off-Camera Shoe Cord OC-E3 *Other accessories can be directly attached to cameras equipped with a multi-accessory shoe. Type: Multi-Accessory Shoe Adapter Mounting Foot ・Number of contacts: 15 pins ・Lock pins: 2 ・Fixing method: Lever operation with locking mechanism ・Dust-proof / Water-resistant: Supported Shoe Section ・Number of contacts: 5 pins (X contact compatible) ・Lock pin hole: 1 ・Dust-proof / Water-resistant: Supported Power supply: Powered from the camera Operating temperature: 0°C to 45°C Operating humidity: 85% or less Dust-proof/Water-resistant performance: Supported *Water-resistant performance equivalent to the EOS-1D series Dimensions (approx.): 38.8 (width) × 31.7 (height) × 38.4 (depth) mm Weight (approx.): 41g (body only)