Steve Gibby
Red Savant
You can get an adaptor from Schneider Optics to install the 150-600 Century short conversion into the Nikon mount. That's how I use mine. But it wiggles a bit, like any of the lenses over 200 mm I use. I'll be interested to see your evaluation of the new mount.
I'm glad to hear your success with the Nikon mounts in general. I guess after years of working with B4 and PL I expect the lens to be rock solid on the camera, which mine are not. If you grab the lens, it wiggles. Still works fine, but just doesn't feel like A-List equipment. Maybe my mount isn't up to spec, but I suspect it is more tied to design, hence the new Optitek. Either way, I hope the Epic will improve the situation. (put Jacek on the team!)
Thanks for that tip on the Century conversion. I'll check on that with an associate of mine at Century. My Nikon lenses don't wiggle in either of my Underdahl Nikon mounts, nor did they in my original RED Nikon mounts. Either I just got extra good versions of the mounts, with close tolerances, or mine are set up right - or both factors. Yes, I'm interested to see how Jacek's new Nikon mount performs. My friend Matt Uhry seemed to be impressed by it, and I respect Matt's opinion on equipment. We'll see...
In my motion media work, almost my entire career (30+ years) has primarily been using B4 and PL mounts. I know what you mean by "rock solid", and naturally I prefer that, just like you. But the still photo portion of my career (since 1969) has been with Nikon and Canon mounts. On RED One, when I use Nikon lenses, I use all my lenses that weigh over around 3 pounds with a rod and bracket support of some kind underneath them.
All those longer lenses of mine have a lens collar and screw receptacle: 80-200 AF-S, 50-300 AIS, and 400 AIS. I've been using a custom bridge bracket, on 15mm ET aluminum rods (12"), placed through my ET hybrid plate or ET 15mm plate. I use that exact same setup to support my Canon FD 150-600, which is stock except for the Century PL conversion. The screw receptacle on the Canon takes the larger screw than the Nikon lens collars do, so I have a few different screws I use to go from through bridge plate into the collar. For the Nikons I've had to adapt some custom hard rubber spacers to buy space between the bridge plate and the lens collar.
My Nikon 80-200 AF (3 pounds), as opposed to my Nikon 80-200 AF-S (4 pounds), is light enough to use on my Nikon mounts with no support underneath (see pic below). But I always use my Nikon 50-300 AIS (5 pounds - see pic below), and Nikon 400 AIS (6 pounds), with rod support.
I've attached a few pics that illustrate how I support my long Nikon lenses and Canon 150-600 (9 pounds - see pic below), as described above. You probably already do the same, but even if you have a loose Nikon mount for some reason, your long lenses shouldn't wobble on the mount if you have them supported well underneath. My rule of thumb for supporting my 35mm stills lenses on RED has been: up to 3 pounds, no support underneath. Anything over 3 pounds gets support. My long lenses have been rock solid using that procedure.