I recently purchased a Canon 5D Mark IV body and was given a $500 voucher to spend on Canon gear. It expires in about a week, so I have to decide what to get ASAP.

I am not sure how to spend the $$$ and was hoping for some suggestions. I have all of the lenses that I want, I have a 580 EXII flash and don't think getting the 600EX flash is that much of an upgrade. So not a lens and not a flash.

I don't think I have much use for a battery grip either. A few spare batteries would be nice, but they won't cost $500.

Any suggestions?

Thanks and Cheers

Rex