Askar M54 Filter Drawer - M54-FD 40 mm Eyepieces The Falco features high quality

The Falco features high quality glass components treated with Kite Optics MHR coating

The key to the etalon’s performance lies in its ability to tune the wavelength it transmits

1 mm FIELD STOP DISPLACEMENT TO REFERENCE PLANE +/- 0 mm NUMBER OF LENS ELEMENTS 8 NUMBER OF GROUPS 5 AR-COATING Phantom Coating® Group THREADED FOR FILTERS Yes CAMERA THREAD M43 PARFOCAL EYEPIECES Yes DUSTCAPS 1¼" dustcap (31

The 3nm Colour Magic Sulfur II narrowband filter is a professional astrophotography tool specifically designed for deep-sky imaging

65") Angular Field of View 8° Linear Field of View (@1000 yds) / @1000 m) 420 ft (140 m) Exit Pupil 5

Askar M54 Filter Drawer - M54-FD 40 mm Eyepieces The Falco features high qualityUsers have to follow the certain steps to successfully assembly the Askar filter drawer and put it into the light path to fit the whole optical system: 1. Take out the main body of Askar filter drawer 2. Choose a proper camera adapter according to the thread type of your astronomy camera 3. Fix the camera adapter on the main body with 5 M38 countersink screws and wrench of M2 4. Choose a proper telescope adapter according to the thread type of your