Explorecams - Explorecams allows you to search through thousands of images that people taken on specific photo camera bodies & lenses.
Unsplash - Unsplash is a website with high-quality free HD images. It has a catalog of more than three hundred thousand striking images that are neatly organized with tags. Read more about Unsplash.
FreeFoodPhotos - freefoodphotos is a free stock photo library of food and beverage photography ready for download and use in web design and high resolution print
Pixabay - Over 270,000 free photos, vectors and art illustrations
Obscura - DSLR controls for your iPhone
Openverse - Openverse is an Openly Licensed Images and Audio database and a growing community of photographers, illustrators, and musicians who share their work under a Creative Commons license.