Advice on R7 Lenses

I think that getting the 18-150 lens as part of the R7 kit is a real bargain and I would start out there for a wide angle to medium telephoto lens. I would not bother with anything else in this focal length range until you identify a real need for something different after taking a few thousand photos with the lens and determining if it had any weaknesses.

Then I would also get the RF 100-400 as this is currently also a real bargain (in the USA) at its discounted price. I just don't know how long this discount will be around. I forget what the initial publicity said about the duration of the "sale." It may end as early as tomorrow.

I would hold off on the 800 f/11 until you have more experience with your basic set up (above). The 800 is, in my opinion, a specialty lens which takes some care to use properly. I borrowed one last summer and used it in Alaska for some 300 photos. I was not really happy with any of the photos I took with it, and much preferred the photos I took with my adapted EF 100-400 II + 1.4x converter. I found the 800 made it hard to locate the subject in the viewfinder and to keep it there especially if the subject moved a lot. It would be a good lens for shorebirds, slow moving mammals, and probably for photos of the moon, but I didn't try it for that -- and once the novelty wears off, I wonder how many photos of the moon I might want to take.

One drawback with these lenses is that they are not "weather resistant," whatever this means in real life. Most photographers will not be in a situation where this matters and due care, along with an inexpensive rain cover, should take care of this concern.

I would get the 18-150 kit lens anyway, to get you started. It is a perfect walk-around lens and the image quality is excellent for a basic lens. An 11-22mm RF-S lens is rumoured - similar to the 11-22 EF-M version. If the quality is the same - or maybe even better - this would be an excellent low cost wide zoom.