Canon Focusing Screen Ec-B New Split

For Canon EOS 1D/MkII/MkIIN/MkIII and 1Ds/MkII/MkIII digital SLR cameras, the Ec-B Focusing Screen (New Split) features a matte field with split-image focusing spot in the centre. It is used for general photography with all lenses. A double echelette prevents blurring of the split, even when using lenses slower than F/5.6.

Price: 30.99 from Wex Photo Video