The NiSi P2 Square Filter Holder for IP-A Filter Holder adds a square filter holder to the NiSi IP-A Filter Holder for iPhone® (Sold Separately). When in use, it allows P1 square filters to be used on an iPhone. The P2 square filter holder allows 2 square filters to be stacked and rotated 360-degree. The holder mounts using our patented bayonet mount and has no vignetting using the 0.5x camera settings on iPhone.

Attach the NiSi P2 Square filter holder to the NiSi IP-A (Sold Separately) to bring square filters to your iPhone. To install the square filter holder, align the three bayonets on the square filter holder with the three holes on the IP-A holder. Ensure that the outer bayonets of the square filter holder completely align with the IP-A holder, then turn clockwise to tighten.