In addition to the excellent info here on BMD's official forum, if you are good at internet searches you will find very good info on 3rd party websites about 3rd party products for use with the BMCC.
Myself, I expect to use my BMCC in its "stripped down" configuration fairly often, primarily with >45 yr. old Nikkor F manual prime SLR lenses (24, 35, 55 & 85mm, all f2.8 or faster) via a Fotodiox "Pro" lens mount adapter:
http://fotodioxpro.com/index.php/nikon- ... apter.htmlhttp://www.keh.com/Camera/format-35mm/s ... 136&r=WG&fTo go wider than my 24mm Nikkor prime, I haven't decided yet between getting the Tokina 11-16mm or Sigma 8-16mm zoom lenses. The Tokina is sigificantly faster than the Sigma, but the Sigma is significantly wider than the Tokina. If the BMCC's video S/N performance proves to be very good, that will probably sway me toward the Sigma, because when you want wide, your want wide!
http://www.bhphotovideo.com/c/product/8 ... DX_II.htmlhttp://www.bhphotovideo.com/c/search?Nt ... Search=yesI already own an old Vocas matte box for 15mm rails, and I may get something like the Berkey Mikro baseplate to use with it because it's small & lightweight, unless perhaps they release a baseplate specifically for the BMCC:
http://www.berkeysystem.com/store/camer ... with-quad/I'll probably use two pairs of 15mm rails 12" long each (4 pieces) with threaded ends so I configure it as a 12" long rig (for handheld or tripod use), or 24" long as a basic lightweight shoulder rig.
I'm still researching bits and pieces, but I might add a minimal shoulder pad to the rails such as possibly this one from Ikan or something similar:
http://www.ikancorp.com/productdetail.php?id=262To mount an external battery and other gear such as a small audio field recorder (I own an old SoundDevices MixPre) and my Sennheiser wireless receivers, I might add a plate like this one from CPM to the rails so all the add-on gear is mounted behind my shoulder to counterbalance the camera in front of my shoulder:
http://www.cpmcamerarigs.com/cage_mount_p/023_bp.htmThe above CPM plate or something similar would allow adding a standard V-lock or Anton-Bauer gold-mount battery plate (with power tap), or possiby some yet-announced BMCC-specific external battery. I plan on mounting the battery
below the rails so it helps lower the rig's center of gravity. Lighter items, such as the mixer & wireless might go above the rails. I don't like camera rigs that are top-heavy.
Since the BMCC has a touchscreen UI, I probably won't add a pair of hand grips below the matte box, and instead just grip either side of the BMCC itself. Likewise, most of my productions don't require a follow-focus, but one can always add these things as required. And the cost of accessories keeps coming down over time.
As I said, I'm still researching parts, and whatever rig I improvise, I'm
not likely to purchase a camera cage. For most of my shoots I don't need to attach tons of gear quite that close to the camera itself, and for shoots that do I'll buy or rent what's required. I'd rather have a rig mostly based on standard rail parts so it can be configured in many ways and evolve over time.
Cheers.