BRESSER MESSIER AR-90S/500 OPTICAL TUBE ASSEMBLY
- High quality achromatic lens telescope
- Aperture: 90mm / Focal length: 500mm F/5.5
- Richfield Refractor Telescope
- Maximum recommended magnification: 180x
- Universal 44mm Dovetail plate with stainless steel rail (fits EXOS/LXD75/Great Polaris/EQ5)