Telescope Dew Shields - (Various sizes) Telescope Aperture Size:(215 - 260mm) QE (Quantum efficiency):

QE (Quantum efficiency):

0 Port & USB2

The alignment information is stored and can be retained even when the telescope is switched off

the bandwidth of H-alpha systems can be reduced which provides much more contrast and detail on the Sun's surface

Diagonal mirror with T2 thread

Telescope Dew Shields - (Various sizes) Telescope Aperture Size:(215 - 260mm) QE (Quantum efficiency):Glass surfaces such as telescope lenses pointing to the clear sky are prone to having dew forming on the lens during the night especially if its humid. They also tend to capture stray light, which reduces the contrast of the target. As many astronomers and astrophotographers have experienced, on clear nights, dew is often a real problem and if it forms on your lens it can render your nights observing session over. After only a very short time, the