The 77mm Magnetic Lens Cap from Freewell is designed to protect the filter and lens against dust, moisture, and scratches. This lens cap is made based on the size of Freewell's Magnetic Filter System. For neutral density filter users, if your filter size is 77mm, use the 77mm lens cap.
Lens cap is made based on the size of Freewell's Magnetic Filter System
For neutral density filter users, if your filter size is 77mm, use the 77mm lens cap