Celestron : Picture 1 thumbnail Celestron : Picture 2 thumbnail Celestron : Picture 3 thumbnail

List Price: $137.95

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$72.50
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Celestron : Picture 1 regular $72.50

About Celestron

Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). The new ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire bandpass, with total blockage of prominent light pollution lines. The perfect filter for viewing nebula from light polluted skies, or for boosting the contrast of nebula from dark sky sites.

In addition to it's optimum spectral and optical characteristics, the UHC/LPR filter offers important features that set it apart and result in the highest quality celestial views:

Summary of Customer Reviews

(3)
Customers most agreed on the following attributes:
Pros:
Great optics (3)
Best Uses:
Astronomy (3)

Celestron Features

  • The multi-layer dielectric coatings are plasma assisted and Ionbeam hardened using the latest technology for durability and resistance to scratching.
  • Improved transmission translates to maximum image brightness and contrast. Users of smaller, 4"-11" telescopes will especially appreciate the high efficiency, and larger scope users will love the rich star fields and detailed subtle nebular shadings that are left intact.
  • The high transmission, sharp cutoffs, and more moderate 60nm passband of the UHC/LPR filter retains a more natural view, yet significantly boosts overall contrast. Imagers will appreciate the broader bandpass and inclusion of an extremely efficient H-Alpha passband (656nm)

Reviews about this item

Reviewed by 3 customers

 
5.0

Indispensible if viewing nebula's.

By

from S. California  -  Avid Adventurer

Our polluted and not so good sky turns black when viewed through this filter. Excellent for deep sky imaging as well.

 
4.0

Works well in suburban skies

By

from Narragansett, RI  -  Casual/ Recreational

The Celestron UHC filter works as advertised by blocking out the pinkish light from modern sodium vapor streetlights. However, it is not a substitute for truly dark country skies.

 
5.0

Works as advertised

By

from Auburn GA  -  Casual/ Recreational

Works great at filtering out light polution. Got it on sale & has been a great addition to my telescope kit.

Q&A

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Questions about this item:

Tony B  DOES THE CELESTRON UHC FILTER WORK FOR ASTROPHOTOGRAPHY ?
JIM M  Yes, this filter works especially well for photography. It does require longer exposures and sometimes a higher ISO setting as it's blocking a lot of light. It has one undocumented benefit. It removes most of the chromatic distortion found in achromatic scopes. This, in effect, reduces, eliminates the purple halos around bright objects like the Moon and bright stars.
Tony B  I have a one shot color camera st8300c and didn't know if it would affect the colors ? Will be imaging @f2 using hyperstar on a edge hd 11"
Tony B  Does the filter affect the color data of a one shot color ccd camera ?
Tony B  DOES THE CELESTRON UHC FILTER WORK FOR ASTROPHOTOGRAPHY ?
JIM M  Yes, this filter works especially well for photography. It does require longer exposures and sometimes a higher ISO setting as it's blocking a lot of light. It has one undocumented benefit. It removes most of the chromatic distortion found in achromatic scopes. This, in effect, reduces, eliminates the purple halos around bright objects like the Moon and bright stars.
Tony B  I have a one shot color camera st8300c and didn't know if it would affect the colors ? Will be imaging @f2 using hyperstar on a edge hd 11"
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