All Things Astro
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It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue). It blocks light pollution, maximizes the signal from...
An amazing dual band filter that is fit for purpose with fast scopes. Hyper stars and RASAs and other scopes between F2- F3.5.
Optolong SHO-7nm filter kit includes SII 7nm, H-Alpha 7nm, and OIII 6.5nm narrow band filters, generally working with astronomical monochrome cooling CCD and modified DSLR imaging in each single-channel. Corresponding with RGB channel (HA, OIII,...
Optolong SHO-3nm filter kit includes SII 3nm, H-Alpha 3nm, and OIII 3nm narrow band filters, generally working with astronomical monochrome cooling CCD and modified DSLR imaging in each single-channel. Corresponding with RGB channel (HA, OIII,...