Eyepiece is an invaluable aid to centering guide stars and astrophotography target objects. Relatively high-power 6mm focal length telescope eyepiece with myriad uses is a welcome addition to any astronomer's accessory case.Folding down and removable rubber eye guard for wearing glasses and comfortable viewing as well as blocking stray light to increase the brightness of image. 16mm long eye relief, provides comfortable long term viewing for people with or without glasses. Blackened aluminum fully threaded 1.25" eyepiece barrel and inside thread design to avoid internal reflection and provide a crisp image. The SV214 Pro smartphone adapter has 3-Axis precise adjustment. Precisely adjust X,Y,Z three axes. It is compatible with most mobile phones. EVA pads on eyepiece clip and phone clip protect equipment from wear and tear. The digiscoping adapter can compatible with many telescope, like binoculars, microscopes, monocular telescope. The SV214 Pro 3-axis universal smartphone adapter features 3-direction precise adjustment; up and down; left and right; forward and backward; to center your phone camera with eyepieces with accuracy