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28") Diopter Adjustment Range: ± 2 Twilight Factor: 12
iOptron has added features for convenience and functionality
which means you use the telescope as a photographic lens—a very big photographic lens
you will receive the straight version
The bottom panel is reinforced with a hard layer of PVC for extra protection from minor bumps and to provide a sturdy bottom
Antlia 3nm SII Pro Series Filter - 2" - SII-PRO-3NM-2 Replacement Parts 28") Diopter Adjustment Range: ±This very narrowband 3 nm SII filter from Antlia is part of their Pro series and comes in a 2" threaded filter cell that is designed to be screwed on to the 2" receptacle of your astrophotography accessory, including a 2" filter wheel or filter drawer. Antlia 3nm Pro Series Sulfur II Filter 2" Mounted This Antlia SII Pro narrowband filter optimizes the FWHM (full width half maximum) to a 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro
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