Cameras Inspecting a Used Lens: Fungus, Scratches & More Fungus, haze, scratches and oily aperture blades: how to spot each defect in a used lens with a flashlight test, and which ones are deal-breakers.
Cameras Used Lens Buyer’s Guide: Mount Compatibility Which used lenses fit your camera? Compare Sony E, Canon RF and EF, Nikon Z and F, and Fujifilm X mounts, and learn when lens adapters work well.
