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The emission lines are linked to certain chemical elements - in this case
this ocular has an ultra-wide 82° apparent field of view that immerses observers in the cosmos and naturally promotes relaxation at the eyepiece
the included smartphone adapter allows you to easily capture and share your discoveries
it is much easier to observe for longer periods of time
The alt-azimuth mount features a smooth panhandle control for easy tracking
Nebula Filter CLS 1.25-inch 82-series-eyepiece The emission lines are linkedExplore Scientific Nebula Filter 1. 25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98. 3% This is a general purpose light pollution reduction filter designed for observing the broad range of deep sky objects including nebulae and galaxies. The CLS does a good job of increasing contrast, providing a darker sky background.
