Canon instelglas EC-CIII (5-pack, CY3-1606-000)

The Canon EC-CIII focusing screen is a matte all-purpose screen supplied in a box of five, making it practical for service workshops and photographers who maintain multiple EOS-1 series bodies. It is the standard screen for several professional Canon DSLRs and provides a bright, clear viewfinder image with a plain matte surface for visual focus confirmation.

Highlights

• Standard all-purpose focusing screen for Canon EOS-1D Mark III, 1Ds Mark III, 1D Mark IV, 1D X, 1D X Mark II, and 1D X Mark III
• High-grade optical acrylic construction
• Matte surface aids precise manual focusing
• User-replaceable design
• Sold as a boxed set of 5 screens

In daily use

When the original focusing screen becomes worn, scratched, or lost, the EC-CIII restores the viewfinder to factory brightness and focusing accuracy. Because it is the standard screen, it suits general photography without altering metering behaviour or introducing specialised aids. The five-pack is convenient for high-volume users and repair centres.

Full specifications

• Product type: Focusing screen
• Screen type: Standard / all-purpose
• Focusing aid: Matte surface
• Material: High-grade optical acrylic
• Compatibility: Canon EOS-1D Mark III, 1Ds Mark III, 1D Mark IV, 1D X, 1D X Mark II, 1D X Mark III
• Installation: User-replaceable
• Packaging: Boxed set of 5 screens
• Manufacturer part number: CY3-1606-000

Final note

A dependable replacement part for professional Canon DSLRs, supplied in a practical five-screen box.