Product Name: 3X Teleconverter Extender Product Code:TA3180 Description: Optical element, true physical calculation magnification. Using it not only increases the magnification, the imaging will also be clearer, and the imaging clarity is up to 15 times higher than that of a normal teleconverter. High quality teleconverter. Can be connected to the SLR camera bayonet to increase the number of times when the camera is taken.: Feature 1. Machined of high quality aluminum and anodized black;durable for long time use 2.Fits in 1.25" telescope focusers;and accepts 1.25" eyepieces or accessories;Threaded for use with standand 1.25 Inch astrophotography filters 3..a locking thumbscrew to secure any inserted astronomy accessory to prevent the marring of your telescope accessories Package include 1pc X 3X Teleconverter Extender |