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dew control and filter system into one compact unit controlled entirely from your phone or tablet
Overview of the T130S-T131S Tour Audio System
the Retekess T116/T116A Wireless Paging System enhances customer experience and operational efficiency
it is ideal for lunar observing
Note: The same filter sets are also available to purchase optionally for the basic C and M models
Askar 131F Flat Field quadruple Astrograph 1.5mm spacer dew control and filter systemSelf flattened quadruplet Astrograph which can be used for visual observing and astrophotography. The Askar 131F is a large aperture telescope designed for astronomy enthusiasts, featuring a 131mm aperture, 983mm focal length, and a native F7. 5 focal ratio. It employs a quadruplet optical lens design with three elements in the front and one in the rear, including one piece of ED glass to effectively suppress chromatic aberration. The lens tube
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