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Astronomy » Astronomy Filters
This Baader semi-APO filter is for use with achromatic optics and is designed to cut down on the chromatic aberration and fringe aberration of achromat lenses; presenting a clearer, crisper image.
This UV/IR cut-off filter blocks UV and IR rays to maintain the colour temperature you want, eliminating false colour fringes around bright stars. Offers a 99.9% light transmission rate for bright and clear images.
Special Clearance Price! This filter blocks night glow and airglow, sodium and mercury emissions (but not UV or IV). This versatile broadband filter is suitable for all objects, whether you are viewing them with your eyes, or capturing them with your
This long-pass filter limits transmission of light with wavelengths longer than 650nm. Whilst suppressing all other polluting lights, the filter allows you to observe emission nebulae with greatly enhanced contrast.
Special Clearance Price!Designed for CCD astrophotography, the set includes Luminance-IR, Red, Green, and Blue CCD filters. The filters are resistant to humidity and scratching and set into a durable aluminium alloy threaded mounting ring.
A set of five light filters including Red, Green, Blue, Yellow and Neutral Grey (Lunar). These filters will screw-in to most eyepieces of 1.25"/31.7mm format with internally threaded barrels.
The Altair Astro Premium Neutral Density Moon filter blocks 25% of the light passing through it removing excess glare from lunar images helping to bring out finer detail.
This handy, time-saving device is a must-have for astronomers, for both visual and photographic use. Up to five filters can be installed in the threaded, numbered compartments, and each can be selected for your eyepiece or camera by simply rotating the inner
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