DLO Live! Ep.43 FOV vs Resolution for Thermal and Night Vision optics

This one is going to get nerdy, folks!
As you all prepare to dust off your pocket protectors, I am mostly looking to go into more detail on the technical aspects of how FOV and resolution work with electro-optical sighting devices. Naturally, there will be a Q&A as well.

Post show notes:
A question came up on thermal scopes in the $5k range that I like. There are plenty I have not tested, but I really liked Steiner S35 (these guys have it in stock for $4500: https://bit.ly/3JNasGC) and Bering Super Yoter. Stiner is heavier and bulkier, but has longer battery life. Bering is trim and compact, but battery life is shorter. Pick your poison.
There was a good amount of conversation about precision scopes in the $500 range. There are several good options there. I am quite partial to the Element Helix FFP 6-24x50 https://bit.ly/3QBRWDb The guys at Element really pay attention to tracking consistency.
If you are looking for some extra adjustment range without breaking the bank, Arken seems to have cornered that territory: I have only tested their SH4 Gen2 4-16x50, but I rather like it.
With Vortex, I think the Venom is a very user friendly scope if you do not need illumination: https://bit.ly/3AfXA8F
If you are willing to step up in price a little, I have to admit that Element Titan 3-18x50 is really growing on me. It is a nice scope with a huge adjustment range. https://bit.ly/3bBFfJP