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)