SVBONY SV503 Refractor Telescope with Built-in Field Flattener, 70mm F6.78 Extra Low Dispersion Achromatic Refractor OTA, Telescope for Adults, for Astrophotography Visual Astronomy
102mm objective lens diameter and f/7 focal ratio telescope OTA; large objective lens brings more lights into the scope body and you will get more bright and clear image
Doublet air spaced achromatic S-FPL51 ED glass provides you less chromatic aberration image
Crisp Image; ultra wide band multi-layer coating technology;102mm aperture optics and retactable lens hood deliver bright wide-field images with sharp resolution
90mm back focus; it comes with dual focus rack and pinion focuser with focus knob cover; you can get precious focus easily
Package includes;102mm refractor OTA;2 inch to 1.25inch adapter;Metal hoop and dovetail;objective focuser wheel cover;a package with die-cut foam insert