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HPOIII - High Performance OIII (503BP12) 1.25" Astronomy Filter

HPOIII - High Performance OIII (503BP12) 1.25" Astronomy Filter

Availability: 54 In stock

The HPOIII makes an excellent complimentary filter to Omega's Narrow Pass Band Nebula filter. The HPOIII's high transmission and narrow bandwidth allows maximum enhancement and detail for a large variety of both emission and reflective nebula. 1.25 inch diameter.
Customize this Filter: Request a quote for custom specifications, sizes, or volume quantities.



High Performance OIII (HPOIII) Filter - 503BP12

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) 503
Center Wavelength Tolerance (nm) +4/-2
FWHM Bandwidth (nm) 13
FWHM Bandwidth Tolerance (nm) +4/-2
Transmission ≥88% 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)