Mr Patience
Well-known member
I have done an article, with explanatory photos, on how to attach a long lens to a sling so it is 'ever-ready'. I currently use a Nikon lens, but have used Canon for many years, and this technique applies to all brands as long as the lens has a tripod socket.
Link here: https://birdsnap.blogspot.com/2020/04/nikon-500mm-pf-fitting-sling-attachment.html
Regards.
Link here: https://birdsnap.blogspot.com/2020/04/nikon-500mm-pf-fitting-sling-attachment.html
Regards.