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| Lumicon Oxygen III Filters |
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Lumicon - 1.25" Oxygen III line band filter
| Our Product #: OXY1 | | Lumicon #: LF3040 |
| Back-Ordered: | Temporarily out of stock; will charge and ship when available. |
| This 1.25” Oxygen III line filter has a very narrow 110 Ångstrom passband for two to three times the contrast of a narrowband filter for observing brighter nebulas like M17 and M27 from heavily light-polluted city locations . . .
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Lumicon - 48mm Oxygen III line band filter for 2" eyepieces
| Our Product #: OXY48 | | Lumicon #: LF3045 |
| Back-Ordered: | Temporarily out of stock; will charge and ship when available. |
| This 48mm Oxygen III line filter for medium to long focal length 2” eyepieces has a very narrow 110 Ångstrom passband with excellent transmission of the nebula emission lines of doubly ionized oxygen at 4959Å and 5007Å. Its very narrow passband gives two to three times the contrast of a narrowband filter for observing brighter nebulas like M17 and M27 from heavily light-polluted city locations. It . . .
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Lumicon - Oxygen III line band filter for Schmidt-Cassegrain visual backs
| Our Product #: OXYVB | | Lumicon #: LF3050 |
| Back-Ordered: | Temporarily out of stock; will charge and ship when available. |
| This visual back Oxygen III line filter threads onto the 2” rear cell of 5” and larger Celestron Schmidt-Cassegrain telescopes and 7” and larger Meade Schmidt- and Maksutov-Cassegrains. It duplicates the 2” rear cell threads of those telescopes, allowing all visual accessories to be attached securely to the filter instead of directly to the scope. It allows medium to long focal length eyepieces to . . .
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Terms of Sale | PRIVACY POLICY 7/1/2004 | Fine Print
Toll-Free Telephone Astronomics: 800-422-7876; Christophers, Ltd.: 800-356-6603
Alternate Telephone: 405-364-0858 24 Hour Fax Line: 405-447-3337
Telephone Hours: Monday 8 AM - 6 PM CST
Tuesday-Friday 8 AM - 8 PM CST
Saturday Noon - 5 PM CST
Store Hours: Monday-Friday 9 AM - 5 PM CST
Saturday Noon - 5 PM CST
Astronomics / Christophers, Ltd.
680 S.W. 24th Ave.
Norman, OK, 73069
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