The Schneider Compact ND Kit for 114mm-Diameter Lenses
contains three 4.5" round drop-in solid neutral density filters and a 4.5" round filter holder that is specifically designed for 114mm-diameter lenses without front filter threads. This kit is ideally suited to cine lenses, such as the Zeiss CP.2 and Canon Cinema EOS Primes, and serves as a more compact, streamlined method for using filters with these larger lenses when compared to a standard matte box.
The three included solid neutral density filters have 0.6, 0.9, and 1.2 optical densities and provide an overall exposure reduction of 2, 3, and 4 stops, respectively. They create a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily. The filters are constructed from high quality Schott glass for increased optical clarity and color fidelity and feature rugged brass filter rings for durability and rigidity.
The 114mm SSLR 4.5" Adapter Ring is a low-profile clamp-on locking ring adapter for use with both 4.5" round and 115mm drop-in type filters. It clamps onto the outside of lenses without front filter threads and provides a compact profile for using filters with larger, cine type lenses.