William Optics 1.25" Rotolock Eyepiece Adapter w/ 48mm to 42mm Step Up Ring
William Optics 1.25" Rotolock Adapter w/ 48mm to 42mm Step Up Ring
This 1.25" Rotolock Adapter is threaded to receive both standard 2" (48mm) as well as 42mm accessories due to an included 48mm to 42mm step-up ring. To lock an inserted accessory in place, simply rotate the adapter ring clockwise. Rotate counterclockwise to remove an accessory. Inventive design guarantees a secure hold with perfect centering time after time. No thumbscrews to be concerned about!
William Optics Product Number: FROTO125M42F