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Meade - #911B Broadband Nebular Filter Series 4000
Threads onto the rear cells of Meade LX-series mirror-lens telescopes and onto Meade ED Apochromatic Refractors (using the
Universal Thread Adapter), as well as to the rear cells of other Schmidt-Cassegrain brands. In this way the telescopes are
converted into a basic "nebular mode," for visual observing or for photography with the T-Adapter or Off-Axis Guider. Clear
aperture is 36mm.
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