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Other manufacturers
Atik IR Block Filter (1.25") - £19
High quality dichroic IR block filter from Atik instruments Sharp cut-off at 670nm and high transmission of H alpha (95%)
Celestron Moon filter 1.25" - £9.00
Filter for viewing the moon.
Meade RGB filter set - £147.99
For creating colour images from mono CCD cameras. Does not include the filter holder.
Variable Polarising Filter - from £36.00
Rotating-mount variable polarising filter unit, perfect for controlling brightness especially when making Lunar observations or for use with the Watec 120N when viewing solar system objects. Not suitable for solar observation without an additional solar filter! By rotating the first filter of a mounted pair transmission values of 1% to 40% are obtainable.