• SVBony SV220 3nm Narrowband Filter Ha & OIII Svbony

SVBony SV220 3nm Narrowband Filter Ha & OIII

SVBony SV220 3nm Narrowband Filter Ha & OIII

✅ Made In USA

✅ Quick Delivery

✅ Cruelty Free

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$91.72
$91.72 $120.69
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SVBony SV220 3nm Narrowband Filter Ha & OIII Svbony

SVBony SV220 3nm Narrowband Filter Ha & OIII

$91.72
$91.72 $120.69
SAVE 24% Sold out

Narrowband Filter 3nm H-Alpha & Oiii SV220

  • Ultra-narrow 3nm (H-Alpha & OIII) bandwidth, ideal for photographing emission and planetary nebulae;
  • Minimal halo coating design, effectively blocking excess light and reducing halos;
  • Perfectly compatible with full-frame telescopes and cameras.

Minimal Halo Coating Design

This narrowband filter Adopts multi-layer minimal halo coating technology, it reduces glare and halo interference. It thereby enhances image contrast and color accuracy, presents sharp celestial details against a clean background, and improves the purity of deep-sky photography images.

Technical Specifications

Specification 2-inch Version 1.25-inch Version
Bandwidth / FWHM (H‑α & OIII) ~3 nm (ultra‑narrow) ~3 nm ±1 nm
Thread Size M48 × 0.75 M28.5 × 0.6
Barrel / Filter Cell Outside Size Ø50.8 × 7 mm Ø31.75 × 7 mm
Optical Cut‑off / Transmission Range 300 nm – 1050 nm 300 nm – 1050 nm
Blocking / Out‑of‑Band Suppression Average OD5 (0.001 %) Average OD5 (0.001 %)
Peak Transmission at Target Lines ≥85 % at H‑α & OIII ≥85 % at H‑α & OIII
Coating / Halo Control Multi-layer, anti-reflection, minimal halo design Multi-layer, anti-reflection, minimal halo design
Design Notes Suitable for full-frame sensors; minimal vignetting; optimized for light pollution control and enhanced nebula contrast Same features apply; best performance with slower focal ratios (not ultra-fast optics)

 

In the Box

  • SVBONY SV220 3 nm Dual-Band H‑Alpha & OIII Filter
    – Available in either 2-inch (M48) or 1.25-inch (M28.5) format

  • Protective Plastic Storage Case
    – Foam-lined interior for secure storage and transport

  • Microfiber Cleaning Cloth
    – For safe and scratch-free cleaning of the filter surface

  • User Information Card or Basic Manual
    – Filter handling tips and specifications overview

 

Warranty & Manual

Svbony 1-Year Warranty 

 

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