Several months ago, Sony released a new user-changeable 2K optical low pass filter for their F5 and F55 cameras. The filters are incredibly easy to swap out by loosening just a single Philips screw in the upper right hand corner (yellow arrow in first picture above) of the filter. Simply slide the 4K filter to the right, and pull it away from the camera. The 2K filter then snaps right in, slides to the right, and is held in place with the same Philips screw.

In my last video on the Sony F5 and F55, I showed how firmware version 3.0 adds many new features to the cameras including a 2K Center Scan mode, which is just the right size for use with Super 16mm lenses.