I have had the mar4 for a week now and had the time to take it out to the local duck pond twice now. All shots with a 500f4 and 1.4tc. So far so good, the camera seems to track really well on ducks, swans and Canadian geese. I have also photographed a hawk flying at me but he was distant so it's a heavy crop.
Camera has some nice noise control at higher ISO's. I'm still reluctant to say to much about it till I can get back to my normal RAW converter C1 and see how that handles images.
Here are a few shots I took. All linked to smaller size because of the pixel limit here.
http://caswell.zenfolio.com/img/v1/p231686507-4.jpg
One image per post please.
James


