H-Alpha Emission Filter 656nm Narrow Band Pass Multiple Sizes with Frame for Astrophotograph Telescope (Specification : 52mm)
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H-Alpha Emission Filter 656nm Narrow Band Pass Multiple Sizes with Frame for Astrophotograph Telescope (Specification : 52mm)
Place of Origin: CN (Origin)
Material: glass
Model: NP656
Bandwidth 20nm, peak 656nm, transmittance about 85% Use with 135mm Focal Length Long Lens H-Alpha Filter 656nm 20nm Narrow Bandpass Filter for Camera Telescope Astrophotography