Canon EF 4.5-5.6/100-400mm L IS - Version I - Short test on a Sony A7rIV with Sigma MC11

Hello friends of photography, hello everyone. I am happy to present you my new video. Once again, I've tried out an older lens for you: it's the Canon EF 4.5-5.6 100-400mm IS L. You can currently buy it used for 600 to 700 Euros. I wanted to know how the combination works on the Sony A7rIV when attached to the camera via a Sigma MC 11 adapter. Both the camera and the adapter have the latest firmware: Sony A7rIV version 1.20 and Sigma adapter version 1.42.
If you like the video, please leave me a like and subscribe to my channel, activate the bell, because that's the only way you won't miss any of my videos. Thank you very much!
Everything about analog, hybrid and digital photography, tips and tricks as well as numerous brochures, booklets and manuals for you to download can be found on my homepage www.apertureonepointfour.com
00:00 Start
00:22 Introduction
01:10 More cheap telephoto lenses tested
01:44 Technical data
02:40 Filters and lens hood
02:59 Push and pull zoom
03:26 Zoom resistance
04:40 Lens controls
05:15 Autofocus
05:40 Infrared photography
06:34 Infinity compensation
06:50 Tripod adapter
07:03 Attaching the lens
07:13 Test photos