Most Matteboxes currently available may obstruct the motor's LiDAR, making it difficult to use the autofocus function. If you only need to use ND filters or other effect filters instead of shading, there are many convenient lens devices available in the market that can still be used. Alternatively, you can use a rear-mounted VND filter (e.g. MOFAGE POCO) to avoid obstructing the motor's LiDAR.