USED CHROMA 36mm NARROWBAND 3nm SET - UT-14177

ITEM #
UT-14177
  • This is a used set of filters in excellent condition
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  • Regular price $1,950.00
  • $1,499.00
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USED CHROMA 36mm NARROWBAND 3nm SET - UT-14177

Hα spectral line filter

H-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate 

Singly ionized sulfur spectral line filter

SII filters isolate the emission from ionized Sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671.6 and 673.1 nm.

Doubly ionized oxygen spectral lines fIlter

OIII Narrow Band filters isolate the doublet emission of doubly ionized Oxygen. After ionized hydrogen, this is the next most common emission when imaging nebulae. Doublet emission occurs at 495.9 and 500.7 nm.

SPECIFICATIONS

ConditionExcellent
Warranty90 Day Covered By OPT

INCLUDED ITEMS

  • Chroma 36mm narrowband 3nm filter set
  • Envelopes and plastic cases
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