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Combining it with optical glass of high refractive index allows us to achieve unprecedented advanced chromatic aberration correction
Recommended for our 127mm and 152mm refracting telescopes (excluding our doublet refractors)
the Apex 8x56 maximizes light transmission for bright
The focusing system is compatible with popular after-market electric focuser devices
Nebula Filter H-Alpha 2-inch 12nm 1800-2000 Combining it with optical glassIn addition to the turbulence in the air, the brightening of the night sky is the greatest obstacle to observing faint objects beyond the solar system. Street lights and other artificial lighting mean that the sky in human settlements is no longer properly black. As a result, the contrast and thus the perception of the deep sky objects also suffer. Depending on the type of celestial object, however, part of the interfering light can be filtered out,
