If you don’t need an enclosed light path, these holders are an inexpensive alternative to ourenclosed holders. These filter holders are open so you have easy access to the filters and you can insert various filters simultaneously, as long as the total thickness does not exceed the maximum total thickness value. Thumbwheels hold the filters firmly in place. They are available in all three series sizes.

If you don’t need an enclosed light path, these holders are an inexpensive alternative to ourenclosed holders. These filter holders are open so you have easy access to the filters and you can insert various filters simultaneously, as long as the total thickness does not exceed the maximum total thickness value. Thumbwheels hold the filters firmly in place. They are available in all three series sizes.