Filters
optolong
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L-Para Dual Band Filter - 2" Mounted
OptolongOriginal price $259.00Current price $209.00L-Para (L-Parallels) is a dual narrowband 10nm light pollution filter. The FWHM of L-Para is 10nm for OIII (500.7nm) and H-Alpha (656.3nm) respecti...
View full detailsOriginal price $259.00Current price $209.00Preorder
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