Been looking around for some information and only getting bits and pieces........
I looked at numerous forums (like FM) and saw a video using an R5 with EF 400 f/2.8 and adapter and it looks very promising. I am contemplating replacing some EF glass in time. Were I to use an EF 300 f/2.8 II with an EF-RF adapter and possibly stack an EF 1.4x or 2.0X in that setup, does anyone have a feel for the autofocus/maximum frame rate/battery life with that kind of setup? I know I'll likely lose some focus points. According to Canon, this lens is very capable of some pretty good FPS on an R5 but nobody is talking about how the battery holds up "pushing" that kind of focusing hardware in a birding type of scenario.
All in all, this is an amazing camera for stills but I am thinking about the future using existing lenses versus replacements (which would be a significant stretch on my budget ).
Thanks in advance
I looked at numerous forums (like FM) and saw a video using an R5 with EF 400 f/2.8 and adapter and it looks very promising. I am contemplating replacing some EF glass in time. Were I to use an EF 300 f/2.8 II with an EF-RF adapter and possibly stack an EF 1.4x or 2.0X in that setup, does anyone have a feel for the autofocus/maximum frame rate/battery life with that kind of setup? I know I'll likely lose some focus points. According to Canon, this lens is very capable of some pretty good FPS on an R5 but nobody is talking about how the battery holds up "pushing" that kind of focusing hardware in a birding type of scenario.
All in all, this is an amazing camera for stills but I am thinking about the future using existing lenses versus replacements (which would be a significant stretch on my budget ).
Thanks in advance