We are not accepting orders at this time. Online ordering will resume Monday, May 28th at 9:45PM EDT. Our SuperStore and offices are currently closed and will reopen on Tuesday, May 29th at 9:00AM EDT.
We apologize for any inconvenience and appreciate your patronage.
The Canon Ec-S Focusing Screen with Canon's exclusive Super Precision Matte technology makes it easy for professional photographers to determine the precise point of sharpest focus during manual focusing. This is because the microlens on the screen's matte is optimally shaped to increase defocusing near the point of focus.
Optimized for use with lenses whose maximum aperture is f/1.8 to f/2.8.