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5mm connection to connect an external speaker for audio output when it is needed for events or classes
working distance between about 200-300 meters in the open area
ASKAR 3" f/4
Transmittance: ≥95%
1 x SV28 25-75x70mm Observation Scope
ASTF: AstroSolar Telescope Filters OD 5.0 Size:BAADER 5.0 OD AstroSolar® Telescope Filter 280mm 5mm connection to connect anASTF: AstroSolar Telescope Filters OD 5. 0 From 80mm to 240mm Optimized for Solar Observation and Photography: Ideal for use with premium telescopes and high power tele lenses. Enables observation of the finest details, including individual sunspots, at the highest magnification levels. AstroSolar Safety Film OD 5. 0: Carefully mounted in a temperature compensated cell to ensure stress free performance. Temperature Stability: Designed to eliminate
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