A Great Place for Photos of all Kinds (free of charge)
Some of these photos originate from my own camera, an older veteran, an aging Nikon D300, paid for and mine. Of course, the glass is the more important part of the system, and several different types of lenses adorn my old cameral body.
Even though I don't consistently take reference as to the origin of the photo, many of these great pieces of art are from an awesome photography portal: www.unsplash.com
Thank you Unsplash for your generosity and for the high quality one can rely on.
If you are on the lookout for high-res photos, Unsplash is a good address. Try them out.