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I'm sure this has been asked many times before, but anything would be helpful. I'm looking to upgrade from a standard point-and-shoot to a higher quality camera before a safari vacation. I was leaning more towards dslr than mirorless, but am overwhelmed by determining mm v. zoom factor. I'm mildly intimidated by breaking the think while trying to change lenses, but I want to make sure I will be able to get good quality photos of wildlife that might be further in the distance, as well as something that will be able to shoot quickly. I was leaning toward the Nikon D3300. Any suggestions?