Sigma 28-105mm f/2.8 DG DN 'Art' lens review

Yet another striking new lens from Sigma...is that zoom range useful enough, and will the thing be SHARP enough for anyone to really want it, though?

All pictures taken by me on Sony a7R III and a5100 cameras.

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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/b...