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  • Oxygen III Narrowband Filter - 1.25"

Oxygen III Narrowband Filter - 1.25"

SKU: CEL-93623
$79.95
$79.95
Unavailable

DESCRIPTION

The 1-1/4" OIII narrowband filter isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) emitted by planetary and emission nebulae, while blocking the rest of the overall spectrum of light. The result is extreme contrast between the black sky background and the faint photons of OIII light needed for detailed views of the Veil, Ring, Dumbbell, Crescent and Orion nebulae, among other objects.

Each filter has an ultra hard, vacuum-deposited coating carefully designed to block all of the visual spectrum ranging from 400 to 700 nm This eliminates the un-natural colored halos surrounding bright stars common with O III filters of less sophisticated coating technology.

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Founded in 1970 by father-and-son veterans of the United States military, Analytical Scientific still runs strong on family and community pride. The same family members still open the doors each morning and greet  customers... for 47 years!

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Analytical Scientific has been featured in magazines, newspapers, and on television and radio. You've seen us for decades underneath a canopy of Oak trees... now stop by and see what all the talk is about!

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San Antonio, TX 78250
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IN MEMORY OF GEORGE ALDRICH
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