ZWO M54-M48 21mm Extension Nagler The Celestron RS-232 Cable connects

The Celestron RS-232 Cable connects your computerized telescope to a laptop or PC for control via various planetarium software programs

The camera automatically captures a series of images of the sky

While other astronomy apps may claim that they can help you find objects

cemented lens

ZWO M54-M48 21mm Extension Nagler The Celestron RS-232 Cable connectsDesigned using black anodized aluminum, this ZWO spacer offers 21 mm of extension with a 2" M54 male threaded nosepiece on one side and 2" M48 female thread on the opposite side. Suitable for use with any large camera that has M54 threads, whether from ZWO or another brand. Permits 2" astronomy filters to be used at the underside of the nosepiece. Adapter Connector Type Side A M54 Adapter Connector Type Side B M48 (Wide T or T2) Adapter or Spacer