Optical Low Pass Filter for Blackmagic URSA Broadcast G2
+ Moiré filtration + IR-cut
+ Easy Installation
+ Shim, tools and video for installation included
Aliasing and moiré are common issues with digital imaging. The issue often appears with fine repeating patterns like LED video walls and fabrics. To prevent it from occurring most digital cinema camera’s (including the Arri Alexa, Sony, Canon camera’s) have a built in Optical Low Pass Filter (OLPF).
The original IR absorption filter of the Blackmagic URSA Broadcast G2 does not have an OLPF.
Blackmagic made it easy to change the filter. The interchangeable mount can be easily removed. Behind the mount the original filter is held in place by three screws. After removing the filter the Rawlite OLPF can take its place.
This Rawlite OLPF is specifically designed for the Blackmagic URSA Broadcast G2, preventing moiré and aliasing while preserving the high detail that this camera is able to capture with it’s 6K resolution. The assembly has been designed to preserve the same flange depth (distance between the rear of the lens and IR-filter). By doing so it’s assured that all mounts, lenses and adapters that work with the original filter, will work with the Rawlite OLPF.
A hot mirror coating is added to cut infrared light very effectively. An anti-reflective coating prevents unwanted reflections and enhances contrast. No more moiré, no more IR contamination. This means no need for expensive IRND.
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.