3 custom functions for more creative shooting. Compact and lightweight this flash is powered by AA batteries (not included) and weighs just 190 g. Create a natural look and feel by bouncing flash off walls and ceilings, or by remote-triggering the Speedlite EL-100 off-camera. Easy Auto mode takes care of the technicalities, so you can get started with flash for better pictures of events, friends and family. Offering a guide number of 26 m and a manual zoom head it can be adjusted for optimal lighting spread. Use as an optical wireless sender to trigger remote flashes from different locations or use it off-camera as an optical receiver controlled from compatible EOS camera bodies. Wide lens coverage from 24 mm to 50 mm.