Reikan Focal website
Just got the basic one and upgraded same day to the middle one and now thinking of getting pro version. I think the dust feature on pro version may help with keeping an eye on dust in the d600. Have you used dust feature in pro? I used it to fine tune my d7000/d600 and my lens collection. It was interesting to see that both my new tamron 17-50 2.8 and tamron 28-75 2.8 needed the most adjustment. Both needed around -15 to -19 at most zoom end. The best one that needed least adjustment was my brand new nikon 50 1.8g and my 50 1.8d, 85 1.8d needed similar adjustments on both bodies. All needed minus adjustment since they all back focused on both bodies. I did end up having to print a large 11x14 (i think) target since the first smaller target had some issues at 8ft away staying locked on.