Patent: Canon RF 120-700mm f/4.5-8 optical formula

[privatebydesign]

...the conversation was about the aperture and focal length affected DOF.

Which was categorically wrong.

 

[Del Paso]

700mm. I highly doubt I could handhold a 700mm lens and get a sharp shot. I'm not knocking the lens at all. I might actually be interested. I just know my limitations.

Forget about your "limitations".
Optical stabilization plus IBIS are all you need. Depending on the speculations, they could allow a gain of up to 6-8 speeds.
So, no excuse to refrain from buying one...