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This Super Quality 1
including Meade LXD 55/75
The ZWO narrowband OIII 7nm filter is designed for nebula observation by allowing a 7nm bandwidth of light to be centered on a wavelength of 500nm (which corresponds to OIII emission lines)
The drive system utilizes low cog DC Servo motors with integrated optical encoders
Threaded for 48 mm Filters
Antlia 3nm OIII Pro Series Filter - 2" - OIII-PRO-3NM-2 Battery This Super Quality 1This very narrowband 3 nm OIII 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 Oxygen III Filter 2" Mounted The Antlia OIII Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro
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