Canon 300mm f/4 IS USM 'L' lens review with samples (Full-frame and APS-C)

This is a pretty popular lens with sports photographers and some wildlife photographers (although I still think 400mm is way better for wildlife). It's getting on a bit these days, though - is it still sharp enough?

Find it here (Amazon affiliate link):
https://geni.us/canonef300mmf4is

If you've found this or other videos I've made to be helpful, then support me on Patreon! https://www.patreon.com/christopherfrost?ty=h

In case anyone is wondering, my Canon 70D had to be sold! I'm getting married (in only 2 months now!) and saving up for the wedding/ honeymoon. :-)

All pictures and footage shot by me on Canon 6D and 70D cameras. This video's been sitting on my hard drive for a while, so it was made back when I still had a 70D.

Equipment I use to make my videos (Amazon affiliate links):
Canon EOS R5: https://geni.us/CanonEOSR5Body
Canon EF-RF Adaptor: https://geni.us/CanonEFtoRF
Sigma 50mm f/1.4 'Art': https://geni.us/Sigma50mm14Art
Canon RF 35mm f/1.8 IS STM: https://geni.us/CanonRF35mm18Macro
Marumi Fit and Slim CPL Filter: https://geni.us/MarumiFitSlim77
AudioTechnica AT2020USB+ Microphone: https://geni.us/AT2020USBPlusMic
Rode Smartlav+ Microphone: https://geni.us/RodeSmartLavalierPlus
Rode SC3 adapter: https://geni.us/RodeSC3MicAdaptor
Zoom H1n Recorder: https://geni.us/ZoomH1nMiniRecorder
DJI Mini 2 Drone: https://geni.us/DJIMini2FlyMore

Music:
'Opportunity Walks', Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/