The programs replace the existing mode dial on either camera model with one similar to that featured in the EOS 60D, where a button located at the center of the Mode dial must be depressed before the dial can be turned. The design is intended to prevent accidental changes to Mode dial position, and the cost of the modification varies by country. In the United States market, EOS 5D Mark II and 7D owners will pay US$100 to have their Mode dial switched to the 60D-style lockable dial, according to the published service advisory. In Canada, no advisory has been published online, but an email distributed by the company lists a price of CAD$110. Finally, Japanese-market pricing for the modification is set at ¥10,500 including tax, according to the Japanese-language advisory.

The modified dials for the Canon EOS 5D Mark II and Canon EOS 7D appear as in the images below. Note that new cameras will continue to ship with the non-locking dial, with the locking dial available only as an upgrade post-purchase

Canon EOS 7D and EOS 5D Mark II locking mode dials. Renderings provided by Canon Inc.