I post too Much on Here!!
- Jul 21, 2010
Compare the EF-M 18-55 f/3.5-5.6 STM to the EF-S 18-55 f/3.5-5.6 STM. Same top line specs, same number of elements, same weight. The EF-S lens, which needs to accommodate the throat diameter of a FF mount, is a 'slight' 58% larger by volume.Oh yeah 54mm instead of 47mm , wow that's 3.5mm bigger radially so the camera will potentially be slightly larger . Oh dear !