2" CLS Filter was designed to improve the image contrast of observed objects. Due to its ability to produce exceptionally sharp and clear images, this filter is considered one of the most popular astronomy accessories. It can be used not only for celestial observations but also for astrophotography. This filter can be open used in the astrophotography in the city.
Features:
1.Brand new Telescope 2'' CLS Light pollution & nebula filter
2.Sand blasted black anodized finish, anti-reflection treatment, and laser engraving
3.Ultra-thin filter cell to minimize vignetting
4.2-inch astronomy filter with standard M48x0.75 male filter thread (female thread, can be stacked with other filters)
5.High quality protective plastic storage case
6.Material: Optical glass lens, Aluminum Frame
7.Caliber: 2" / 50.8mm
8.Net Weight: 0.35oz/10g
9.Dimension: 2.01x2.01x0.43in/51x51x11mm