Optolong SII 6.5nm Narrowband Filter 2" Mounted (OPT-SII-65NM-2)

Optolong SII 6.5nm Narrowband Filter 2" Mounted (OPT-SII-65NM-2)Optolong improved narrowband SII6. 5nm filter (Sulfur II for CCD) is designed for nebula observation allowing 6. 5nm bandwidth of light centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapour, and both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.

The finderscope will likely have to be removed when storing the telescope

That’s a 20% increase in true field-of-view seen with a simple screw-in accessory lens

barlows etc

which provides high reflectivity so that more light passes through the optical path to your eye

for holding eyepieces and other accessories

deep space

9 (with 2-inch diagonal) Weight OTA/Std

ZWO ASI533MM-P

This is the same finder that is built into 6000-SF line of solar filters

2 m) Interpupillary Distance (max): 72mm (2

In addition to the configurable compartments inside

4mm of spacing