
DGM HPOIII - High Performance O-III filter (503BP12) 2"
The HPOIII makes an excellent complimentary filter to DGM'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. 2 inch diameter.
DETAILED SPECIFICATIONS
SKU: XAF-HPOIII200
FILTER TYPE: Bandpass
COATING TYPE: Surface Coating
DIAMETER (MM): Per 48MM Camera Ring
MOUNTING TYPE: Ring Mounted
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)