Lumicon Infrared 1.25" Filter $69.95,  Lumicon LF3140,Telescope Accessories Accessories, New
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LUMICON INFRARED 1.25" FILTER LF3140

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Lumicon Infrared 1.25

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MSRP: $98.00
Sale Price: $69.95
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Savings $28.05

Lumicon Filter Infrared 1.25"

Item No. 735-20700
Manuf. No. Lumicon LF3140

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Lumicon Minus Violet and Infrared Blocking Filters are used primarily to "bracket" the color-corrected band of refracting telescopes. The Minus Violet and Infrared Blocking Filters can also be used as "visible" filters in RGBV (red-green-blue-visible) astrophotography with reflecting telescopes. The larger Minus Violet filters are for telephoto lenses.

Most digital/CCD cameras have built-in infrared filters, in which case either the Minus Violet or Infrared filter may be used. The choice would depend on how far into the blue your primary lens is color-corrected. The Minus Violet filter blocks wavelengths shorter than about 420nm; the Infrared filter blocks wavelengths shorter than about 400nm. If your camera does not have a built-in infrared filter, the Infrared Blocking Filter is recommended, which blocks all wavelengths longer than 750nm.


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