Hi, I have recently upgraded from a 7d to a full frame 5d mk4, which is a very nice camera, but I am still looking for the right lens. I have a 24-70 which is a good general purpose lens, and a 150-600 which gives me reach. On my 7d I have an 18-200 which I found perfect for travel. It would handle landscape pictures yet give me a zoom if I saw wildlife at the same time without having to change my lens. So far, my searches have not found a similar choice for a full frame camera. Any suggestions ? Thank you