3X Barlow Lens---- 3X magnification with 0.965 inch interface doubles the magnification of any 0.965 inch eyepiece. With M42x0.75mm thread to connect digital camera via T ring adapter
Comfortable Observation---- This barlow lens can provide more magnification without reducing the exit hole on the eyepiece and keeping a comfortable observation with wide view
High Refractivity---- Multi coated optical lens offers a high quality observation without additional chromatic aberration, making image more clear
Easy to Use---- Simply insert the eyepiece into Barlow lens, and then insert the Barlow lens into the scope. Length: 6.8cm / 2.7in
Lightweight and Durable---- The barlow lens sleeve is made of high quality plastic, which is lightweight and can stable and durable for a long time use