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providing exceptional brightness and resolution for observing planets
Their streamlined roof prism design is both waterproof and nitrogen-purged
The adapter plate itself is also attached to the U-mount with the help of two large clamping screws
4 Resolution
it allows for unobstructed light transmission and sharp images across the entire frame
52° Series 4.5mm Waterproof Eyepiece Aperture_40mm - 90mm providing exceptional brightness and resolutionHigh power eyepieces (e. g. 3mm to 10mm) are used not only for obvious observations of planets and double stars, but can be employed for bright, compact deep sky objects. Not only will the scale of an object like a planetary nebula or globular cluster be impressive as it fills the eyepiece FOV, but the background sky will be very dark as the contrast effect increases with added magnification, provided that the atmospheric seeing conditions are
