Thanks for all the detailed notes, Eddie! This is exactly the info I've been looking for so I can upgrade my DSLR for higher quality video. I saw an earlier comment by Rupert S saying that, "You can't use full 5 axis IBIS without native glass." Can you comment on that? When I called B&H, the rep said that any lens would work with the A7Sii's IBIS. Also, can you elaborate on what you mean by the "lens adapter and dock" you recommended buying? B&H sells the Sigma 24-105mm lens with a Sony A lens mount, so I want to make sure I understand what you were referring with by "lens adapter and dock." Thank you!
Awesome post and comments! Thank you, Lane and Eddie. Your question and answer were exactly what I was looking for. Similarly, I do a lot of handheld video work, so I'm excited to invest in a Sony A7Sii and take advantage of any lenses that will work with the 5-axis IBIS.