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NPB - Narrow Pass Band Nebula (496BP22) 1.25" Astronomy Filter

NPB - Narrow Pass Band Nebula (496BP22) 1.25" Astronomy Filter

Availability: Out of stock

An ultra high contrast type of filter that is very effective for small and fainter emission planetary nebula, as well as a variety of bright nebula, especially through larger scopes. 1.25 inch diameter.



Narrow Pass Band Nebula (NPB) Filter - 496BP22

Spectral Curves

The spectral curve and ascii data is a typical representation of this filter's performance, but may vary due to production and design variations. Omega only guarantees this part to meet the product specifications listed.

Detailed Specifications

Additional Information

Filter Type Bandpass
Inventory Type Stock
Coating Type Surface Coating
Shape Round
Diameter (mm) Per 28.5MM Camera Ring
Diameter Tolerance (mm) Nominal
Thickness (mm) Per 28.5MM Camera Ring
Thickness Tolerance (mm) Nominal
Clear Aperture Diameter (mm) Per 28.5MM Camera Ring
Clear Aperture Diameter Tolerance (mm) Nominal
Flatness ns
Parallelism ≤ 1 arc minute
Mounting Type Ring Mounted
Mounting (Outer Ø - Thickness - Clear Aperture in mm) M03-FC 28.5MM
Center Wavelength (nm) 496
Center Wavelength Tolerance (nm) +4/-4
FWHM Bandwidth (nm) 23
FWHM Bandwidth Tolerance (nm) +5/-2
Transmission ≥90% peak
Blocking ≥ OD2 540-590nm
Transmitted Wavefront Distortion ≤ 3 waves
Angle of Incidence 0
Minimum Surface Quality Assembly per MIL-C-48497A (F scratch/ F Dig)