This page shows the visible spectra from my 1.25 " filter collection
I think there are a couple missing, but they will be added. (A GSO IR blocking filter is definitely missing, and I had more than one blue filter
On several I have more than one of that color so there are 2 yellow filters shown as Filter#1 and Filter#2 and so on.
| Visible spectrum of light - 400-700nm (nanometers)
less than 400 nm - Ultraviolet
400 nm - violet
445 nm - indigo
475 nm - blue
510 nm - green
570 nm - yellow
590 nm - orange
650 nm - red
700+ nm -near infra-red then infra-red
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above: Baader 685 nm Long IR pass filter; for taking IR pictures
| Orion Ultrablock filter.
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GSO IR blocking filter - Taiwan
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Orion SkyGlow Pollution Filter from Japan
| Orion SkyGlow Pollution Filter from Korea |
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Cheap small diameter (~1/2") moon filter in plastic case
| Cheap larger (1.0") moon filter in plastic case
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Orion polarizing moon filter (parallel) (two polaroid filters)
| Orion polarizing moon filter (perpendicular) (two polaroid filters) |
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| Meade Series 4000 0.9 Neutral Density Filter
| Orion #15 Deep Yellow filter from Korea - Filter #1
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Celestron #21 Red from China
| Orion #15 Deep Yellow filter from Korea - Filter #1 |
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Orion #25 red from Korea Filter #1
| Orion #25 red from Korea Filter #2 |
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Orion #56 Green Filter #1
| Orion #58 Green Filter #2 yeah, one is #58, one #56 on filter.
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Celestron 80a blue filter from China.
| Orion Medium blue 80a from Korea (Filter #1)
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| Orion Medium blue 80a from Korea (Filter #2) | |
