DGM GCE (Galaxy contrast enhancement) filter 1.25"

The Galaxy contrast enhancement filter aids in the visual observation of galaxies and Milky Way dust clouds and dark lanes. 1.25 inch diameter.

DETAILED SPECIFICATIONS

FILTER TYPE: Notch (Rejection Band)

COATING TYPE: Surface Coating

DIAMETER (MM) Per 28.5MM Camera Ring

TRANSMISSION: ≥ 90% avg 425-520nm ≥ 90% avg 620-750nm

BLOCKING: ≥ OD1 540-590nm

TRANSMITTED WAVEFRONT DISTORTION: ≤3 waves

ANGLE OF INCIDENCE: 0 HALF-CONE AOI 0

MINIMUM SURFACE QUALITY: Assembly per MIL-C-48497A (F scratch/ F Dig)