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Filters > Nebulae filters > H-Alpha Filters > Baader > Baader Filters Ultra-Narrowband 3.5nm H-alpha CCD-Filter 50x50mm
Product no.: 45361

Filters Ultra-Narrowband 3.5nm H-alpha CCD-Filter 50x50mm

$ 570.00 incl. VAT, plus shipping costs
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Product description

These 3.5 nm H-alpha Enforced-Narrowband Filters open up the extremely narrow 3,5nm H-alpha world. This enforced contrast results in even fainter stars, providing more signal of faintest nebulae detail. Manufacturing such ultra-narrow filter does require extreme coating homogeneity and very high Center-wavelength precision, which these filters are designed for.

Specifications

Capacity


Central wavelength (nm)
656,3
Half-value width (nm)
3,5
Frame
unmounted
Optical length (mm)
3
Coating of optical system
dielectric
Filter Size (mm)
50 x 50

General


Type
Filters
Type of build
line filter

Area of application


Planetary nebulae
yes
Hydrogen nebulae
yes
Useful for photographs
yes
Baader Filters Ultra-Narrowband 3.5nm H-alpha CCD-Filter 50x50mm
Baader Filters Ultra-Narrowband 3.5nm H-alpha CCD-Filter 50x50mm

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