Linhof-style Copal Lens Board Material: Carbon fiber resin If you have a preferred size (No. 0 / No. 1 / No. 3), please purchase the item and let us know your desired size via the transaction message. For other sizes or custom requests, please consult with us after purchase. We manufacture lens boards compatible with various camera brands and lens sizes, including Linhof. Special sizes and custom orders are also available. Please feel free to contact us for adapting or modifying old lenses and shutters.