TELESCOPIC COLLIMATOR ADJUSTABLE COLLIMATOR DO ADAPTER OPHTHALMIC COLLIMATOR TELESCOPE SETTING TELESCOPIC COLLIMATOR This telescopic collimator supports 7 levels of brightness adjustment. Energy saving design, low power consumption and durability for long time use. Includes do eyepiece adapter, you can move 1,25 inch thread to 2 inch. It can help to accurately collimate the telescope in a quick and easy way. It adopts precise production to improve stable properties and high reliability. LIST OF PACKAGES 1 x collimator 1 x do eyepiece adapter ADJUSTABLE COLLIMATOR Only after accurate collimation of optics can the telescope offer full performance. This rugged device allows for quick and precise collimation of the Newton telescope. Designed for a reflector telescope, matching do standard diameter 1,25 in. DO ADAPTER Color: black. Size: 13,50 x 5,00 x 5,00 cm / 5,31 x 1,97 x 1,97 inches. Material: Zinc alloy. Powered by: CR2030. Power: 1mw 5mw. Brightness adjustment: 7 levels. This telescopic collimator supports 7 levels of brightness adjustment. Energy-saving design, low power consumption and durability for long time use. Comes with an adapter do eyepiece, you can move the thread 1,25 inches to 2 inches. It can help you to accurately collimate your telescope in a quick and easy way. Adopts precise production to improve stable properties and high reliability.