I have a Nikon D7100 (which does seem to suggest it has weather proofing), the stock lens (18-105), and the 35mm DX f1.8G prime lens. All are transported in weather proof carry cases.
I currently don't have any filters.
My question is simple (ish). My wife and I are off on holiday in a few weeks and we're travelling down the California coast line. I am planning on taking the camera with me to capture as much of the holiday as possible, so I wondered what kind of protection I would need for the camera/lenses bearing in mind that we'll be spending the vast majority of our time near the coast, and potentially a day whale watching (so in the presence of sand and salt water).
I have read lots of conflicting reports about filters and other methods of protection, but I worry that it will affect the picture quality.
Any advice would be much appreciated.