Periscope Relay Lens Visual Extender

>This Visual Adapter for the CDK 17 allows you to attach standard 2″ visual accessories to the Hedrick Focuser.

• The adapter steps the 3″ opening down to 2″ for standard 2″ accessories.
• The adapter also adds some additional spacing to optimize the use of a 2″ diagonal so focus is reached with most eyepieces.

This 3.5″-2″ Visual Adapter, for the CDK20 and CDK24, slides into the optional 3.5″ Hedrick Focuser.

• The adapter steps the 3.5″ opening down to 2″ for standard 2″ accessories.
• The adapter also adds some additional spacing to optimize the use of a 2″ diagonal so focus is reached with most eyepieces.

• The Tele Vue Everbrite has a Pyrex mirror with 1/10th wave accuracy
• Dielectric, non-metallic coatings have 99% reflectivity across the visible spectrum
• Resulting images through this diagonal are brighter and “whiter”
• The Everbrite’s body is machined from one solid block of aluminum for permanent alignment
• 2″ filter anti-reflection threads in the diagonal let you attach filters to the diagonal instead of moving from eyepiece to eyepiece
• Brass clamp ring holds 2″ eyepieces and accessories firmly in place without marring the barrels
• Included 2″ to 1.25″ HiHat Adapter is of same high quality in make and materials