SVBONY SV220 OIII+SII 7nm Duo-Band Telescope Filter 2" |Bortle 8 NGC6960 M27 M17

The SVBONY SV220 7nm Dual Narrowband Filter captures SII and OIII lines with high precision; OD5 blocking and ≥88% transmission ensure vivid, low-noise nebula images even under light pollution; 44mm aperture supports full-frame imaging; M48×0.75mm thread offers wide compatibility; ideal for OSC cameras and true SHO color balance.

🌌 Uncover Faint Cosmic Details That Other Filters Miss The SVBONY SV220 S+O 7nm Duo-Band Filter is your key to revealing the hidden textures of supernova remnants and nebulae. This 2" filter isolates the OIII (500.7nm) and SII (672nm) wavelengths in a single shot, cutting through light pollution to deliver crisp, detailed images from your backyard.

✨ Key Selling Points Dual-Band OIII + SII Precision: Targets the emission lines of ionized oxygen and sulfur, perfect for capturing the faint, delicate structures of supernova remnants and nebula filaments that are invisible to broadband filters. 7nm Balanced Bandpass: Strikes the ideal balance between blocking light pollution and preserving fine detail. Eliminates background noise without losing subtle cosmic textures. OD5 Deep Light Blocking: Blocks 99.999% of city glow, moonlight, and unwanted UV/IR light (300–1000nm range). Shoot stunning images from your backyard, no dark-sky trip needed. High Transmittance Efficiency: ≥85% single-point transmission and ≥88% average peak transmission drastically reduce exposure times, lowering camera noise and making post-processing faster. Universal 2" Fit: M48×0.75 thread, compatible with mainstream astronomical camera/telescope mounts.

🎯 Ideal Shooting Targets Supernova Remnants: Veil Nebula, Cygnus Loop (reveals faint shockwave filaments and sulfur-rich textures) Emission Nebulae: Orion Nebula, Carina Nebula (highlights the contrast between oxygen and sulfur layers) Planetary Nebulae: Ring Nebula, Dumbbell Nebula (captures the outer sulfur shells and inner oxygen structures)

👤 Who It’s For Deep-Space Enthusiasts: Perfect for those chasing supernova…