SVBONY SV503 Telescope 102ED F7 Extra Low Dispersion Achromatic Refractor OTA Micro-Reduction Rap Focuser for Astrophotography
- 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.
- ultra wide band multi-layer coating technology.
- 102mm aperture optics and retactable lens hood deliver bright wide-field images with sharp resolution.
- it comes with dual focus rack and pinion focuser with focus knob cover.