What is the best lens for taking pictures of birds and animals on a Canon R7 because I am totally lost with all the options out there. I just bought the camera body last week because a guy at the store said it was the best one for wildlife but now I realized I have no idea what lens to put on it. Everything I look at online is so confusing with all the numbers and letters like RF and IS and USM and I dont really know what any of that means for someone just starting out. I really want to be able to see birds and maybe some deer clearly from far away without them looking like tiny dots. I live right by a big park in Florida and I am going to the Everglades in about three weeks so I kinda need to get something soon so I can practice. My budget is probably around $800 to $1200 max but I really dont want to spend more than that if I can help it. Someone mentioned a 100-400 lens but then I saw a 600mm or an 800mm one and the 800mm looks really long so is that better for birds? I just want something that isnt too heavy to carry around all day but still gets me close to the action. Sorry if these are really dumb questions I just have no idea where to even start with this.