Haoda Optical Research Group
There is FREE
PDF file on how to change and clean the focusing screen.
This is an old manual for new screens, you have to use the copper shims.
Price and Payment Method:
The price is $72+$5 Shipping within US and $8 for international
You can use our store website to check out.
Canon 5D users click here,
other Canon DSLR users click here.
Current ebay Link
See why most professional photographers chose Haoda screens.
diagonal screens for 20D, 30D, 350D, 400D are $10 more.
There are more interesting stuffs in my store including focusing
screens for other brand cameras like Nikon, Minolta, Olympus ..., and some
interesting adapter rings.