Optolong L-eXtreme F2 7nm Dual Band Filter for Fast Optics - 2" StarSense For 30 years

For 30 years

Fastar Compatible : No

the NexStar can be controlled using popular astronomy software programs

Product SKU: YE-TR-BR48-N Product Type: T-Mount Designed For: Nikon Full Frame Camera Fabricated From: Copper w/ Hard Coating Weight: 105 grams Threads: 48 mm Fit Type: High-Precision Fit

/ 3m close focus satisfies birding field optic requirements

Optolong L-eXtreme F2 7nm Dual Band Filter for Fast Optics - 2" StarSense For 30 yearsThe 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 characterized spectral lines (OIII, Ha) are the main transmission wavelengths, and the OIII and H Alpha nebula emission lines pass accurately at f2 f3. 3. This 2" L eXtreme filter performs well with RASA, HyperStar F2 and other telescopes with fast optics of f