Planetary contrast filters

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Sirius Optics - Neodymium 1.25 plantary contrast filter

Neodymium 1.25 plantary contrast filter

$89.00




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Accessories / Filters / Eyepiece Color (Lunar/Planetary) Filters / Planetary contrast filters

 Sirius Optics Neodymium 1.25 plantary contrast filter
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Neodymium 1.25 plantary contrast filter
$89.00
  
   
 Our Product #:  NPC1-1
 
In Stock: Usually ships within one business day.
 
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Price
$89.00
Warranty
1 year

The NPC filter is designed primarily to reduce the unfocused violet halo seen through common refractors around bright objects.

It utilizes Neodymium glass as the basic substrate. Neodymium is a rare-earth metal with unusual spectral properties when infused into glass. It absorbs parts of the yellow and green regions of the color spectrum, giving it a bluish cast.

It was discovered when combined with the MV1 filter, the resultant image becomes very neutral. The MV1, by itself imparts a slight greenish yellow cast. By coating the Neodymium glass with the MV1 formula, we get the best of both in one filter. The overall transmission will be about 78%.



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