Our new 2" fully multi-coated 45 degree correct image erecting prism will turn your Stellarvue telescope into the ultimate terrestrial scope. Comes with 1.25" compression ring adapter. Use this prism with a large 2" wide field eyepiece for porthole visual views of distant objects, birds, etc. You can get an excellent performance using this 45 degree erecting prism and your Stellarvue Apo refractor.
31mm of clear aperature.