Dark-Sky Filter 77mm Slim accessories This complete package includes a

This complete package includes a 25mm Plössl eyepiece

but not at or near the center (unless you are very lucky

making it ideal for visual observers who want precision without complexity

various types of narrowband filters

These tubes are designed to help adjust the distance between your camera and the telescope’s focal plane or accessories like correctors and field flatteners

Dark-Sky Filter 77mm Slim accessories This complete package includes aUniversally applicable dark sky filter with 77mm filter thread for photo lenses. Particularly suitable for increasing contrast in aurora and deep sky photography. The wavelengths of 550nm (green) and 630nm (red), which are particularly relevant for aurora photography, are transmitted to more than 90%. A special feature of other so called CLS filters is that only the yellow light of the sodium line is effectively blocked at 590nmwill. This effectively