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I made a screen assembly using the LCD panel filters mounted in an old CD container (100 CD-R spindle) and a 40mm PVC waste outlet. PCV waste outlet fits neatly over eyepiece and diagonal, cut out groove to pass over eyepiece fixing screw. blacken all internal surfaces. Provides for an image up to 110mm using 12mm eyepiece or smaller clearer image with 20mm eyepiece. Works a treat on my 80mm refractor and/or 114 mm reflector stopped down to 50mm appature.
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