Advice on telephoto zoom lenses
What do you photograph with it?
Are you going to take photos of animals on the Veluwe, or are you going to a soccer match to take photos of the players from the side? You need a lens with a large range to take clear photos. A telephoto lens is a nice solution.
This is how you can make stable photos
A telephoto lens starts where an all-round lens ends, at about 70 or 135mm. It's useful to have an all-round telephoto lens with which you can zoom in and out, because you'll never know how far away your subject will be. A monopod or tripod is useful to have when you take photos with a telephoto lens. The weight and the length of the lens can cause your hands to move when you take a photo. If you see a deer for the first time in your life, you want to take a sharp photo of it. If you decide to take a photo by hand, you can choose a lens with image stabilization. That prevents motion blur of camera motions.