ZWO Line Filter Set 2 inch

ZWO line filter set 2 inch contains three narrow-band interference filters (H-Alpha 656 nm, S II 672 nm and O III 500 nm) that suppress light pollution and greatly increase the contrast of faint nebulae. These filters fit into a low-profile 2-inch filter holder and are homofocal with all ZWO filters, eliminating the need to refocus when changing filters.

Key benefits
✓ Three narrowband filters for H-Alpha, S II and O III with 7 nm bandwidth
✓ Increases contrast of hydrogen nebulae, planetary nebulae and supernova remnants
✓ Homofocal design saves time in LRGB or narrowband workflows
✓ Easily mounted in 2-inch low profile filter holder
✓ Supplied in sturdy plastic storage box for safe transportation

Technical specifications

• Format: 2 inch filters in filter holder
• Passbands: H-Alpha 656 nm, S II 672 nm, O III 500 nm
• Bandwidth (HWB): 7 nm
• Transmission: 80 %
• Housing: aluminum
• Coating: multi-layer interference

Practical application
Use this filter set with a monochrome ZWO ASI camera and a 2-inch filter wheel. Capture faint H II areas, planetary nebulae and supernova remnants with exceptional detail and contrast, even under urban light pollution.