Weird lens reviews: Canon FD 35-70mm f/4 AF (Canon's first autofocus lens)

Here's one that's really out there: Canon's first autofocus lens is a bit of a clunky monster, how on earth will it perform on a modern camera, and is it fun to use?
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All pictures taken by me on a Canon EOS R5 camera.
Equipment I use to make my videos (Amazon affiliate links):
Canon EOS R5: geni.us/CanonE...
Canon EF-RF Adaptor: geni.us/CanonE...
Sigma 50mm f/1.4 'Art': geni.us/Sigma5...
Canon RF 35mm f/1.8 IS STM: geni.us/CanonR...
Marumi Fit and Slim CPL Filter: geni.us/Marumi...
AudioTechnica AT2020USB+ Microphone: geni.us/AT2020...
Rode Smartlav+ Microphone: geni.us/RodeSm...
Rode SC3 adapter: geni.us/RodeSC...
Zoom H1n Recorder: geni.us/ZoomH1...
DJI Mini 2 Drone: geni.us/DJIMin...
Music: 'Opportunity Walks', Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 creativecommons....