https://www.youtube.com/watch?v=ard3Q8qAWk4 is an ultra-light compendium that can accommodate up to two filters measuring 4×4″ or 4×5.65″. As well as one additional round filter with a diameter of 138mm, such as a polarizing filter (it can be conveniently rotated) or a diopter. Weighing only 270 grams, this compendium will be your best companion during filming that requires a lot of movement.
Detachable hood
Supports +1,+2 diopters
The round filter rotates 120 degrees, the polarizing filter only needs 90 degrees
Includes adapter rings for lenses 143mm-95mm, 143mm-114mm
https://www.youtube.com/watch?v=9AfqhmndAJ4
https://www.youtube.com/watch?v=S3opeBmPHUA