What are the camera settings for filming with a Canon 50mm F1.8 STM to auto focus on the object? - Quora
File:Canon EOS 40D and 85mmf1.8 02.jpg - Wikipedia
Entrance Pupil Database - PanoTools.org Wiki
Is there a way to get an EFS lens working on a 5D Mark IV? - Quora
File:Canon EOS 40D img 1325.jpg - Wikipedia
EF 마운트/DSLR - 나무위키
Canon EOS40D - カメラ
List of Canon products - Wikipedia
File:Canon EOS 40D.jpg - Wikimedia Commons