The Canon EC-CIV Focusing Screen laser matte achieves easier focusing and good background blur. It is brighter, less grainy and better balanced.
Replacement focusing screen for various PENTAX interchangeable lens cameras.
The Canon Eg-D Precision Matte Focusing Screen with Grid is an interchangeable focusing screen compatible with the Canon EOS 5D-Mark II camera. This grid screen provides a 3-line (horizontal) by 5-line (vertical) etched grid which facilitates easier composition...
This is an optional focusing screen that combines the focus area brackets with a grid to ensure proper composition.
The Ee-A standard screen maximizes viewfinder brightness and is optimized for use with f/5.6 EF lenses and slower.