SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter, Reduce Stray Light, H-Alpha&O-III Narrowband Filter for One-Shot Color Camera, Telescope Accessories for Deep Sky Astrophotography

SVBONY SV220 Telescope Filter, 2" 7nm Dual-Band Nebula Filter, Reduce Stray Light, H-Alpha&O-III Narrowband Filter for One-Shot Color Camera, Telescope Accessories for Deep Sky Astrophotography

• Capture Purer Nebula Light: SV220 2" Dual-Band Filter allows high transmission of OIII (500.7nm) and H-Alpha (656.3nm) nebula emission lines, while effectively blocking artificial light interference and skyglow
• Improve Image Quality: Featuring over 94% transmission and superior Out-of-band light rejection, SV220 nebula filter delivers a significant boost in image contrast and detail for deep-sky astrophotography
• Capture the Cosmos Downtown; use SVBONY SV220 telescope filter to enable deep-sky photography in light-polluted cities or under a full moon
• Crafted for Astrophotography: SV220 2" astrophotography filter is designed for color CMOS, CCD, and digital cameras, significantly reducing the difficulty and hassle of post-processing
• Specification: Anodized aluminum frame; Waterproof optical glass; net weight: 50g; Thread specification: M48*0.75
• Suitable astronomical telescope: SVBONY SV220 narrowband filter cannot be used with smart telescopes or astronomical telescopes with a focal ratio of f/4 or less