DLC White Balance Lens Caps.
These lens caps are great for digital cameras. Just attach to the front of your lens, point at a subject
area and the light is diffused to create an average white balance for a
particular scene. (Check camera manufacturer's manual for setting white
balance.) Slips on to the front of any lens, or a lens with a
protective filter. If your lens has bayonet threads on the outside,
simply use the adapter provided. Handy loop to connect to a camera
strap or strap lug so you don't lose the cap. Sizes available 52mm and 58mm
through 77mm.