Lumicon 1.25" H-Beta hydrogen spectrum Filter for 1.25"
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상품특징
Make sure this fits by entering your model number."The Horsehead Nebula Filter"...
상품설명
The Horsehead Nebula filter. The Lumicon H-Beta Filter isolates only the hydrogen-beta line of the spectrum (486nm) in a narrow pass-band just 9 nm wide. The result is extreme contrast between the black background of space and the delicate Hydrogen - Beta emission of extended nebulae.
Make sure this fits by entering your model number."The Horsehead Nebula Filter"...
상품설명
The Horsehead Nebula filter. The Lumicon H-Beta Filter isolates only the hydrogen-beta line of the spectrum (486nm) in a narrow pass-band just 9 nm wide. The result is extreme contrast between the black background of space and the delicate Hydrogen - Beta emission of extended nebulae.
2022-06-18 02:45:43