Canon RF 20-40mm f/4 STM Lens Rumored to be Announced Next

EF 40mm f/2.8 STM Pancake Lens

According to Chinese weibo, Canon is rumored to announce a new pancake lens for Canon RF mount full frame mirrorless cameras. This new RF lens is RF 20-40mm f/4 STM lens. Currently no specs rumors about this lens, stay tuned for more info.