Blackmagic Design announces the URSA Mini Pro 12K OLPF - Newsshooter
Blackmagic Design Announces URSA Mini Pro 12K OLPF
Optical Low Pass Filter (OLPF) Archives - RAWLITE
OLPF for Blackmagic URSA Mini Pro 4.6K - RAWLITE
BMPCC OPTICAL LOW PASS FILTER SWAP (No More Moire or IR Contamination!)-영문 : 네이버 블로그
OneRiver Media - The new Rawlite OLPF (optical low pass filter) arrived for our URSA Mini Pro 4.6K. While I haven't exhibited bad moire or aliasing, this filter does cut it out