Version 3.5 is obsolete (released circa 2010–2012). It supports older EOS models (e.g., 5D Mark II, 7D, 50D, 1000D). For modern cameras (2015+), use the Canon EDSDK 13.x or later .
Unzip the folder; no installation is required as it is a portable app. canon eos digital info sdk 3.5 download
: You can sign up for the Canon Developer Programme (EMEA), Canon Developer Community (Americas), or Canon Asia Developer Resources . Version 3