Amazon.com : Astromania 1.25" H-Alpha Night Sky Filter : Electronics
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OPTOLONG Filter H-Alpha 7nm Deepsky Clip-on Filter for Astronomy Telescope with EOS-C Cameras Astrophotography LD1010E _ - AliExpress Mobile
H-Alpha 12nm (Bandpass Photo Filter) 1.25”
Amazon.com : Astromania 1.25" H-Alpha Night Sky Filter : Electronics
OPTOLONG Filter H-Alpha 7nm Deepsky Clip-on Filter for Astronomy Telescope with EOS-C Cameras Astrophotography LD1010E _ - AliExpress Mobile
Optolong Night Sky H-Alpha filter (IR Pass 650nm) with 50% transition from blocking to passing at about 640nm and 95% -Optolong Optics Co.,Ltd.
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OPTOLONG Filter H-Alpha 7nm Deepsky Clip-auf Filter für Astronomie Teleskop mit EOS-C Kameras Astrofotografie LD1010E
Nebelfilter
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Lumicon H-Alpha-Filter Night Sky 2"
