CDK17 and 20 OPTEC TCF-S2/S3 Adapter

This adapter provides space between the CDK17 or CDK24 telescopes and the OPTEC TCF-S2 or TCF-S3.

• OPTEC TCF-S2 (#170380) provides 0.46″ in length
• OPTEC TCF-S3 (#170379) provides 0.26″ in length