Optical Low Pass Filter for Blackmagic URSA Broadcast G1
Aliasing and moiré are common issues with digital imaging. To prevent it from occurring most digital cinema camera’s (including the Arri Alexa) have a built in Optical Low Pass Filter (OLPF).
The original IR absorption filter of the Blackmagic URSA Broadcast does not have an OLPF.
Blackmagic made it easy to replace it’s IR-absorption filter for an Optical Low Pass Filter (OLPF). The filter is held in place by three screws. After removing it these same screws can be used for installing the precisely fitting Rawlite OLPF.
The Rawlite Blackmagic URSA Broadcast OLPF is specifically designed for the Blackmagic URSA Broadcast preventing moiré while preserving detail.
A hot mirror coating is added to cut Infra Red. An anti reflective coating prevents unwanted reflections.
The Rawlite Blackmagic URSA Broadcast OLPF works flawlessly together with the internal ND’s.
No more moiré, no more IR contamination.
The Rawlite OLPF is thicker than the original filter. Consequently a shim is needed to correct back focus. The shim is included in the kit, as well as tools needed for installation.