BMCC Accessories?

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Just wondering what accessories those of you who have a BMCC are using?

 

I was looking for some sort of polarizing sticker for the screen but it seems there aren't any available. Would sticking on a polarizing gel sheet work? (I can't believe a Chinese company hasn't made one of these yet).

 

What about external battery? B&H sales rep recommended the Switronix PB70-BMCC PowerBase-70 Battery Pack.

 

I plan on ordering the MFT version and getting a Nikon>MFT SB for Nikkor AIS lenses. HOPEFULLY it won't take too long to get the camera.. When I spoke to my local BMD reseller they seemed to have both models in stock or at least get them in stock very frequently.