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Ergonomic 45-Degree Viewing Angle: Ensures comfortable
Give you higher contrast and greater detailed viewing
ZWO ASI 294MC PRO can run up to 25fps at 4k format base on USB3
Precision Fit
fixed frequency
ToupTek New narrowband 2inch filter Variant:SII filter 2inch 6.5nm Ergonomic 45-Degree Viewing Angle: EnsuresToupTek New narrowband 2inch filter Narrowband filters make astronomical photography more interesting. Emission nebulae contain rich and complex narrowband emission lines, such as the deep red 656. 28nm H emission line, the red [SII] (671. 6nm and 673. 1nm) and the blue green [OIII] (500. 7nm and 495. 9nm). Compared with broadband, narrowband filters only focus on a few very narrow bands, retaining only a few nanometers to a dozen nanometers of
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