Optolong L-Extreme F2 Fast Optics Dual-Band Narrow Pass Filter 2" Mounted (OPT-L-EXTREME-F2-30)

Optolong L-Extreme F2 Fast Optics Dual-Band Narrow Pass Filter 2" Mounted (OPT-L-EXTREME-F2-30)Optolong L eXtreme F2 is a dual band (500. 7 nm and 656. 28 nm, FWHM=7 nm) narrowband pass filter that meets the requirements for transmission at continuously varying angles. Astronomically characterised spectral lines (OIII, Ha) as the main transmission wavelengths, the OIII and H Alpha nebula emission lines pass accurately at f2 f3. 3 Focal Ratio. L eXtreme F2 Introduction Astronomically characterised spectral lines (OIII, Ha) as the main

You do not need to fully dark adapt just to see the pole star

05mm 2mm+/-0

Locking Screw Position Diagram

1 - 100 Ω Spintronic resistor

9° with included eyepiece Linear Field of View (@1000 yds) / @1000 m): 94 - 47 ft (31 - 16 m) with included eyepiece Focal Length: 540mm (21

Eyepiece): 1497g 1520g

With Sibley as your guide

With more mounting slots predrilled on the plate

it has very low readout noises and an extreme large full well capacity which is 3 times larger than that of IMX462

it still maintains a focal ratio of f/7

especially after you’re ready to move beyond the Moon and planets

Silent and Low-Vibration Stepper Motor Control: Focus with great accuracy and tranquility with our Stepper Motor Controller