Astronomik CLS Filters available in a variety of sizes. Size:Astronomik CLS 1.25" (M28.5) 25" eyepieces with a metal

25" eyepieces with a metal thumbscrew

Modulation mode:ASK

10 hr continuous work time for the transmitter

1x Cell Phone Adapter Mount

Astronomik CLS Filters available in a variety of sizes. Size:Astronomik CLS 1.25" (M28.5) 25" eyepieces with a metalThe Astronomik CLS is a budget filter for visual observation, Black & White photography and CCD photographs of nebulae, galaxies and star clusters with astronomical instruments of any size. The Astronomik CLS blocks the light of the spectral lines of mercury and sodium vapor lamps and lets the largest part of the visible light and H alpha emissions pass. All the important emission lines, as well as the spectral region that the very well dark adapted