Lunt Solar Internal Double Stack Module for LS80MT & LS100MT Solar Telescope - DSII/SFPTP Dovetail Base 91") F/Ratio f/12 Focal Length

91") F/Ratio f/12 Focal Length (mm) 1800 mm Secondary Diameter 47 mm Secondary Obstruction (diam) 31 % Secondary Obstruction (area) 10 % Dawes Limit 0

2" Klemme): 1

with a 348 second period

The NexStar 8 SE features Schmidt-Cassegrain 8" aperture optics with premium StarBright XLT coatings

Light Gathering Power (Compared to human eye): 843 x

Lunt Solar Internal Double Stack Module for LS80MT & LS100MT Solar Telescope - DSII/SFPTP Dovetail Base 91") F/Ratio f/12 Focal LengthLunt Solar Internal Double Stack Module for LS80MT or LS100MT Solar Telescope Now with new generation etalons every unit individually tested on Lunt's precision metrology equipment. Every specification is verified, not estimated. The SFPT is the internal double stack module for Lunt's 80mm and 100mm Universal Modular Telescopes. It adds a second precision etalon inside the telescope body, reducing combined system bandpass from 0. 45 single stack to