Pegasus Astro OIII Photographic Filter - 2" Mounted

Product Details

• Description
• Specifications
• Included Items
• Recommended Products
• Reviews

• The OIII-CCD 7nm Photographic Filter is designed for nebula observation. Allowing 7nm bandwidth of light centered on a wavelength of 500nm through. Which corresponds to OIII emission lines and adds in reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high- and low-pressure sodium vapor lights. Also including the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).

  
  

  

  
  

• specifications

  Bandpass	7nm
  Filter Shape	Round
  Filter Size	2"
  Filter Thickness	5mm
  Filter Thread	M48 (2")
  Filter Type	OIII
  Mounting	Mounted
  Optical Coating	Multilayer Anti Reflection
  Polish	1/4 wavefront Parfocal
  Thread Thickness	2.5mm
  Transmission Range	T >80% 500 nm 7nm FWHM

• included items

  • Pegasus Astro OIII Photographic Filter - 2" Mounted