TeleVue T-Ring Adapter - PTR-2200 replaces the eyepiece holder on the 2" 2x Televue Powermate Barlow.
Top of eyepiece screws off and is replaced by the PTR-2200
Threads directly onto the chrome barrel in place of the eyepiece holder.
TeleVue T-Ring Adapter - PTR-2200 is suited for photography with short focal length refractors capable of using 2" visual accessories.
Allows for the attachment of a CCD camera.