I just started using the 600pf so I doubt very much if I'd ever purchase the f/4 version. BUT, I would love to experience the f/4 in different situations so I can get a feel for if/when I'd rent it for different trips. Lots of options for renting the big dog so I'm curious as to how much I should expect to pay for a rental? The standard minimum rental period? And any recommendations for mainstream rental companies?
Thanks much! Kurt
Thanks much! Kurt