I am a family, senior, and wedding photographer. Up until now, I have never found the need to go any wider than my 24-70. However, my wife and I recently bought an RV, and we plan on doing some camping and hiking in our spare time. While I am not a landscape photographer, I would like to get some nice shots while we are hiking. Could I "get by" with my 24-70, or should I consider going a little (or a lot) wider? If I did get an UWA lens, I figure I could also get some specialty shots at weddings.