When I was looking at longer lenses and a new canon, I came across a bridge camera. The Leica v-lux4 25-600mm lens. My last canon a t90 film camera ( because in my trade, fire investigations digital photos were not recognized by all courts at that time ) anyway, the t90 with all the lenses and accessories I carried was a heavy bagful. The Leica was pleasure comparatively. F2.8 throughout. Great in always low light conditions . Now I’m looking to use it for nature work.