Adjusting the coaxiality of the 3. lens group in an EF 24-105 IS USM lens Engineering and technology notes Jovan Stosic September 28, 2025 https://canonrepair.wordpress.com/2013/01/01/adjusting-the-coaxiality-of-the-3-lens-group-in-an-ef-24-105-is-usm-lens/ Adjusting the coaxiality of the 3. lens group in an EF 24-105 IS USM lens was last modified: September 28th, 2025 by Jovan Stosic