A lens hood is essential for the elimination of extraneous light and flare, which can seriously deteriorate image contrast and sharpness. It is particularly important when working in the outdoors where sun and bright skies can cause flare in even the finest multi-coated lenses. The Toyo Pro Compendium Lens Hood works with a wide variety of lens brands and focal lengths, and flexibly adjusts regardless of the lens position or camera movement used. It also features a swing-up mount for easy access to shutter controls. Since large format cameras accept a wide selection of lenses from many manufacturers, you might need a variety of filter sizes. The Toyo Pro Compendium Lens Hood provides an elegant solution with the use of standard gel filter holders, both 3" and 4".