Feature

●AstroStreet UHC Filter for 2" (50.8mm) M48 Filter Diameter
●UHC---ultra high contrast <br>As it is named, it enhances the darkness of the sky background and increases the contrast of the gas nebula
●Among the Nebula filter, the bandwidth is wider and is designed to transmit HBeta (Hydrogen-Beta) and OIII lines (Doubly ionized oxygen)
●It does not allow excess bandwidth to pass through, so it is also effective for observation in light polluted areas
●[Sleeve diameter] 2 inch (50.8 mm) filter diameter (M48)


Description

AstroStreet UHC Filter for 2" (50.8mm) M48 Filter Diameter

UHC---ultra high contrast
As it is named, it enhances the darkness of the sky background and increases the contrast of the gas nebula.

The filter only passes through certain bandwidth wavelengths and is called Nebula = Nebula Filter.

Among the Nebula filter, the bandwidth is wider and is designed to transmit HBeta (Hydrogen-Beta) and OIII lines (Doubly ionized oxygen).
It has dramatic effects on a wide range of scenarios, such as the flood nebula (Orion Nebula, etc.), planetary nebula (ring nebula, etc.), and observing light diffused nebula.
In addition, it is effective for observing in light polluted areas as it does not penetrate excess bandwidth.

[Sleeve diameter] 2 inch (50.8 mm) filter diameter (M48)

The data is published in the catalog.