The canon ef m 28mm f35 macro is stm lens is the first macro to join the ef m range and a worlds first to feature built in led lights designed for eos m users looking to explore the world of macro photography this compact lightweight lens offers a 45mm field of view 35mm equivalent and has a true magnification ratio of 11 meaning the object you are shooting appears life size in your image the pair of built in miniature macro lite electronic flash units on the front of the lens illumina