Hello Matt, Thank you so much for the informative response. I looked at your website, your pictures are phenomenal and what I aspire to be able to do one day. I have one more question if you don't mind, when you're out doing this sort of photography and in different weather environments, how careful do I need to be when swapping lenses for different shots? I have heard sensors on all cameras can be fragile. Would it be best to just choose one and not swap unless I am back indoors where it's dry and warm?