THOUSAND OAKS SOLAR FILTERS:
H-Alpha Systems |
Full Aperture Filters |
Off-Axis Filters |
Binocular Filters |
Threaded Camera Filters |
Black Polymer
C-14 eyepiece projection, Canon 10D digital camera
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NEW (0.9 Angstrom)
For over twenty years we've manufactured the most popular white light filters in the world. With our white light filter, excellent views of sunspots and granulation are easily seen. In H-Alpha light, spectacular prominence activity can be seen at the limb. Flares are also visible on the surface along with the same white light details visible with our standard filters. The two part system is easy to use and can be setup in less than a minute.
Each system includes an energy rejection filter (ERF) and H-Alpha filter unit (HAU) with a tilting (fine-tuning) mechanism. The HAU is a compact 4 3/4" long x 2" diameter and weighs approximately 7oz. It attaches between telescope back and star diagonal or between star diagonal and eyepiece and accepts standard 1 1/4" accessories. The ERF fits over the front of the telescope tube. The HAU is the same for all telescopes, however, the ERF is designed for use with a specific instrument. Telescopes with a secondary mirror obstruction require an off-axis ERF. Refractors use a center axis as pictured below. ERF's can be purchased separately for additional telescopes. The purpose of the ERF is to increase the focal length and reduce the energy entering the telescope while allowing a narrow band of "red light" to enter. The HAU completes the blocking of all wavelengths except 656.28. The HAU and ERF MUST be used together The system works best at f/15 and above and is compatible with most refractors and Schmidt Cassegrains. The effective focal length of the telescope is increased with the ERF. Example: A four inch aperture f/10 refractor with the included 2" center aperture ERF will have a working focal length of f/20. An eight inch aperture f/10 Schmidt Cassegrain with the included 2.5" off-axis aperture ERF will have a working focal length of approximately f/30. Astro-photography can be done using a standard T-Ring & prime focus\eyepiece projection adapter.
The system does not work well, if at all with Newtonian and Dobsonian reflectors since the focus travel may be too limited (the focus is extended out 3 1/8") or the minimum of f/15 cannot be achieved. We do not offer systems for these telescopes.
| SKU | Description | Price | Add  |
| Thousand Oaks H-Alpha Systems |
| TO HA3 | H-Alpha Complete System (Telescope Aperture: 2.4-3.1", ERF Aperture: 1.25") | $779.00 |  |  |
| TO HA4(OA) | H-Alpha Complete System (Telescope Aperture: 3.5-4", ERF Aperture: 1.50") | $759.00 | | |
| TO HA4(CA) | H-Alpha Complete System (Telescope Aperture: 3.5-4", ERF Aperture: 1.50") | $799.00 | | |
| TO HA5(OA) | H-Alpha Complete System (Telescope Aperture: 4.5-5", ERF Aperture: 2.00") | $799.00 | | |
| TO HA5(CA) | H-Alpha Complete System (Telescope Aperture: 4.5-5", ERF Aperture: 2.00") | $819.00 | | |
| TO HA6(OA) | H-Alpha Complete System (Telescope Aperture: 6", ERF Aperture: 2.50") | $819.00 | | |
| TO HA6(CA) | H-Alpha Complete System (Telescope Aperture: 6", ERF Aperture: 2.50") | $839.00 | | |
| TO HA8(OA) | H-Alpha Complete System (Telescope Aperture: 7-8", ERF Aperture: 3.00") | $839.00 | | |
| TO HA8(CA) | H-Alpha Complete System (Telescope Aperture: 7-8", ERF Aperture: 3.00") | $899.00 | | |
| TO HA10(OA) | H-Alpha Complete System (Telescope Aperture: 9-10", ERF Aperture: 3.50") | $899.00 | | |
| TO HA10(CA) | H-Alpha Complete System (Telescope Aperture: 9-10", ERF Aperture: 3.50") | $929.00 | | |
| TO HA12(OA) | H-Alpha Complete System (Telescope Aperture: 11-12.5", ERF Aperture: 4.00") | $929.00 | | |
| TO HA12(CA) | H-Alpha Complete System (Telescope Aperture: 11-12.5", ERF Aperture: 4.00") | $969.00 | | |
| TO HA14 | H-Alpha Complete System (Telescope Aperture: 14", ERF Aperture: 4.50") | $999.00 | | |
| TO HA16 | H-Alpha Complete System (Telescope Aperture: 16", ERF Aperture: 5.00") | $1,059.00 | | |
| Thousand Oaks Mounted ERF Only |
| TOHAF | ERF filter only 0.9A | $699.00 | | |
| TOERF125 | Mounted ERF Only 1.25" | $159.00 | | |
| TOERF150 | Mounted ERF Only 1.50" | $189.00 | | |
| TOERF200 | Mounted ERF Only 2.00" | $219.00 | | |
| TOERF250 | Mounted ERF Only 2.50" | $249.00 | | |
| TOERF300 | Mounted ERF Only 3.00" | $279.00 | | |
| TOERF350 | Mounted ERF Only 3.50" | $319.00 | | |
| TOERF400 | Mounted ERF Only 4.00" | $359.00 | | |
| TOERF450 | Mounted ERF Only 4.50" | $399.00 | | |
| TOERF500 | Mounted ERF Only 5.00" | $439.00 | | |
| Full Aperture Filters |
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Thousand Oaks Precision Glass Solar Filters
Type 2 Plus: Made with high quality hand select glass and coated with our exclusive Solar II Plus. The most durable filter on the market. Transmission is 1/1,000th of 1% (OD-5). Great for both visual and photographic use. Solar image is yellow-orange. Guaranteed fifteen years.
Type 3 Plus: Lighter density, 1/100th of 1% (OD-4) for maintaining fast shutter speeds when using "slow" fine grain films. For photographic use only. Solar image is yellow-orange. Guaranteed fifteen years.
Optical Film Solar Filters Full Aperture & Off-Axis
Polymer Plus: Exclusive Thousand Oaks Optical Polymer filters offer very high resolution at an economical price. Unlike aluminized Mylar, solar image is yellow with better contrast. Guaranteed five years. Coated with our exclusive Solar II Plus. Coatings are protected in center. Transmission is 1/1,000th of 1%. Image quality and resolution equals our glass.
| SKU | Description | Price | Add |
| Thousand Oaks Full Aperture Filters |
| TO-2000 | Full Aperture - Clear Aperture:40mm\1.50", Scope O.D.: 50mm\2.00", Cameras, Finders (Black Polymer Only) | $49.00 | | |
| TO-2325 | Full Aperture - Clear Aperture:45mm\1.75", Scope O.D.: 60mm\2.32", Cameras, Finders (Black Polymer Only) | $49.00 | | |
| TO-2750 | Full Aperture - Clear Aperture:50mm\2.00", Scope O.D.: 70mm\2.75", Cameras, Finders, Small Refractors | $69.00 | | |
| TO-3000 | Full Aperture - Clear Aperture:60mm\2.37", Scope O.D.: 76mm\3.00", Meade 60 (older models) | $69.00 | | |
| TO-3250 | Full Aperture - Clear Aperture:60mm\2.37", Scope O.D.: 82mm\3.25, C-60 , Meade DS-60 EC, Orion 70, Tak. FS-60 | $69.00 | | |
| TO-3500 | Full Aperture - Clear Aperture:80mm\3.15", Scope O.D.: 90mm\3.50", TV Ranger | $69.00 | | |
| TO-3750 | Full Aperture - Clear Aperture:80mm\3.15", Scope O.D.: 95mm\3.75", C-80 EQ, C-60 AZ/EQ, ETX 60/70, TV-76, Pronto | $69.00 | | |
| TO-4000 | Full Aperture - Clear Aperture:80mm\3.15", Scope O.D.: 101mm\4.00", C-80, Meade DS-70, Orion 80, Vixen 80 | $69.00 | | |
| TO-4250 | Full Aperture - Clear Aperture:90mm\3.50", Scope O.D.: 108mm\4.25", C-90, ETX 90, Questar 3.5 | $79.00 | | |
| TO-4500 | Full Aperture - Clear Aperture:101mm\4.00", Scope O.D.: 114mm\4.50", DS-90, TV-85, Tak FS-78, SKY 90, Vixen 4, GP-102 | $79.00 | | |
| TO-5000 | Full Aperture - Clear Aperture:101mm\4.00", Scope O.D.: 127mm\5.00", C-76, C-4, C-102HD, 2045, ETX 105, TV-101-102 | $79.00 | | |
| TO-5250 | Full Aperture - Clear Aperture:101mm\4.00", Scope O.D.: 133mm\5.25", C-102 HD (older), Apogee | $79.00 | | |
| TO-5750 | Full Aperture - Clear Aperture:127mm\5.00", Scope O.D.: 146mm\5.75", C-102, M- 4500, DS-127, M-4 APO, Sky Max 127 Tak FS-102, Tak-106 N, Tak FSQ-106, Vixen 102 | $99.00 | | |
| TO-6000 | Full Aperture - Clear Aperture:127mm\5.00", Scope O.D.: 152mm\6.00", C-4.5, C-114, C-5, Meade ETX 125, Nexstar 5 | $99.00 | | |
| TO-6001 | SPECIAL OUR EXCLUSIVE - PolyPlus Full Aperture - Clear Aperture: 127mm\5.00", Scope O.D.: 152mm\6.00", C-4.5, C-114, C-5, Meade ETX 125, Nexstar 5 | $49.00 | | |
| TO-6250 | Full Aperture - Clear Aperture:127mm\5.00", Scope O.D.: 158mm\6.25", AR-5, TV-127 NP, Vixen 114 | $99.00 | | |
| TO-6500 | Full Aperture - Clear Aperture:127mm\5.00", Scope O.D.: 165mm\6.50", Meade 127 NT, Orion 130 EDFS, AP-125 | $99.00 | | |
| TO-7125 | Full Aperture - Clear Aperture:152mm\6.00", Scope O.D.: 181mm\7.12", C-150 CR , C-150 HD, M-5 APO, Orion Sky Watcher 6", Takahashi FS-128, Intes MK 67 | $109.00 | | |
| TO-7500 | Full Aperture - Clear Aperture:152mm\6.00", Scope O.D.: 190mm\7.50", C-6, M- LXD-55 6" S/NEWT, Vixen 150, AP-155 | $109.00 | | |
| TO-8000 | Full Aperture - Clear Aperture:152mm\6.00", Scope O.D.: 203mm\8.00", Meade Starfinder, Orion DSE, Intes MK 603 | $109.00 | | |
| TO-8375 | Full Aperture - Clear Aperture:152mm\6.00", Scope O.D.: 212mm\8.37", Meade LXD-55 AR-6, M-6 APO, | $109.00 | | |
| TO-C8375 | Full Aperture - Clear Aperture:178mm\7.00", Scope O.D.: 212mm\8.37", Questar 7 | $129.00 | | |
| TO-8750 | Full Aperture - Clear Aperture:152mm\6.00", Scope O.D.: 222mm\8.75", Starhopper 6 | $109.00 | | |
| TO-9187 | Full Aperture - Clear Aperture:203mm\8.00", Scope O.D.: 233mm\9.187", Celestron & Meade 8 S/C | $129.00 | | |
| TO-9500 | Full Aperture - Clear Aperture:203mm\8.00", Scope O.D.: 241mm\9.50", C-8 Newt, Orion Sky Watcher | $129.00 | | |
| TO-9750 | Full Aperture - Clear Aperture:203mm\8.00", Scope O.D.: 247mm\9.75", Meade Starfinder 8, Orion 8 DSE | $129.00 | | |
| TO-10000 | Full Aperture - Clear Aperture:203mm\8.00", Scope O.D.: 254mm\10.00", Meade LXD-55 8 S/NEWT, M-7 APO, Tak 212 | $129.00 | | |
| TO-10500 | Full Aperture - Clear Aperture:203mm\8.00", Scope O.D.: 266mm\10.50", Coulter 8 | $129.00 | | |
| TO-10750 | Full Aperture - Clear Aperture:203mm\8.00", Scope O.D.: 273mm\10.75", StarHopper 8 | $129.00 | | |
| TO-C10750 | Full Aperture - Clear Aperture:235mm\9.25", Scope O.D.: 273mm\10.75", C-9 1/4 | $149.00 | | |
| TO-11500 | Full Aperture - Clear Aperture:254mm\10.0", Scope O.D.: 292mm\11.50", Celestron 10 Newt, Orion SkyWatcher 10 | $149.00 | | |
| TO-12000 | Full Aperture - Clear Aperture:254mm\10.0", Scope O.D.: 305mm\12.00", Meade 10 S/C, LXD-55 10 S/NEWT, | $149.00 | | |
| TO-12500 | Full Aperture - Clear Aperture:254mm\10.0", Scope O.D.: 317mm\12.50", 10" Dob | $149.00 | | |
| TO-C12500 | Full Aperture - Clear Aperture:279mm\11.0", Scope O.D.: 317mm\12.50", C-11 | $159.00 | | |
| TO-13000 | Full Aperture - Clear Aperture:254mm\10.0", Scope O.D.: 330mm\13.00", Meade Starfinder 10, Coulter 10 | $149.00 | | |
| TO-13750 | Full Aperture - Clear Aperture:305mm\12.00", Scope O.D.: 349mm\13.75", Meade 12 S/C | $179.00 | | |
| TO-15250 | Full Aperture - Clear Aperture:317mm\12.50", Scope O.D.: 387mm\15.25", Orion 12.5 | $179.00 | | |
| TO-15750 | Full Aperture - Clear Aperture:355mm\14.00", Scope O.D.: 400mm\15.75", C-14 | $199.00 | | |
| TO-16000 | Full Aperture - Clear Aperture:355mm\14.00", Scope O.D.: 406mm\16.00", Meade 14 S/C | $199.00 | | |
| TO-17000 | Full Aperture - Clear Aperture:355mm\14.00", Scope O.D.: 432mm\17.00", Coulter 13.1 | $199.00 | | |
| TO-17625 | Full Aperture - Clear Aperture:355mm\14.00", Scope O.D.: 447mm\17.62", Meade 16 S/C | $239.00 | | |
| TO-19000 | Full Aperture - Clear Aperture:355mm\14.00", Scope O.D.: 482mm\19.00", Meade DS-16 | $239.00 | | |
| SKU | Description | Price | Add |
| Thousand Oaks Off-Axis Filters |
| TO-9187A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 233mm\9.187", Celestron & Meade 8 S/C | $89.00 | | |
| TO-9500A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 241mm\9.50", C-8 Newt, Orion Sky Watcher | $89.00 | | |
| TO-9750A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 247mm\9.75", Meade Starfinder 8, Orion 8 DSE | $89.00 | | |
| TO-10000A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 254mm\10.00", Meade LXD-55 8 S/NEWT, Tak 212 | $89.00 | | |
| TO-10500A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 266mm\10.50", Coulter 8 | $89.00 | | |
| TO-10750A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 273mm\10.75", StarHopper 8 | $89.00 | | |
| TO-C10750A | Off-Axis - Clear Aperture:76mm\3.00", Scope O.D.: 273mm\10.75", C-9 1/4 | $89.00 | | |
| TO-11500A | Off-Axis - Clear Aperture:101mm\4.00", Scope O.D.: 292mm\11.50", Celestron 10 Newt, Orion SkyWatcher 10 | $109.00 | | |
| TO-12000A | Off-Axis - Clear Aperture:101mm\4.00", Scope O.D.: 305mm\12.00", Meade 10 S/C, LXD-55 10 S/NEWT, | $109.00 | | |
| TO-12500A | Off-Axis - Clear Aperture:101mm\4.00", Scope O.D.: 317mm\12.50", C-11, 10" Dob | $109.00 | | |
| TO-13000A | Off-Axis - Clear Aperture:101mm\4.00", Scope O.D.: 330mm\13.00", Meade Starfinder 10, Coulter 10 | $109.00 | | |
| TO-13750A | Off-Axis - Clear Aperture:114mm\4.50", Scope O.D.: 349mm\13.75", Meade 12 S/C | $139.00 | | |
| TO-15250A | Off-Axis - Clear Aperture:114mm\4.50", Scope O.D.: 387mm\15.25", Orion 12.5 | $139.00 | | |
| TO-15750A | Off-Axis - Clear Aperture:152mm\6.00", Scope O.D.: 400mm\15.75", C-14 | $149.00 | | |
| TO-16000A | Off-Axis - Clear Aperture:152mm\6.00", Scope O.D.: 406mm\16.00", Meade 14 S/C | $149.00 | | |
| TO-17000A | Off-Axis - Clear Aperture:152mm\6.00", Scope O.D.: 432mm\17.00", Coulter 13.1 | $169.00 | | |
| TO-17625A | Off-Axis - Clear Aperture:152mm\6.00", Scope O.D.: 447mm\17.62", Meade 16 S/C | $179.00 | | |
| TO-19000A | Off-Axis - Clear Aperture:152mm\6.00", Scope O.D.: 482mm\19.00", Meade DS-16 | $179.00 | | |
| SKU | Description | Price | Add |
| Thousand Oaks Binocular Filters |
| TO-2000B | Binocular - Clear Aperture:40mm\1.50", Scope O.D.: 50mm\2.00", Black Polymer / Pair | $89.00 | | |
| TO-2325B | Binocular - Clear Aperture:45mm\1.75", Scope O.D.: 60mm\2.32", Black Polymer / Pair | $89.00 | | |
| TO-2750B | Binocular - Clear Aperture:50mm\2.00", Scope O.D.: 70mm\2.75", Black Polymer / Pair | $89.00 | | |
| TO-3000B | Binocular - Clear Aperture:60mm\2.37", Scope O.D.: 76mm\3.00", Black Polymer / Pair | $89.00 | | |
| TO-3250B | Binocular - Clear Aperture:60mm\2.37", Scope O.D.: 82mm\3.25, Black Polymer / Pair | $89.00 | | |
| TO-3500B | Binocular - Clear Aperture:80mm\3.15", Scope O.D.: 90mm\3.50", Black Polymer / Pair | $89.00 | | |
| TO-3750B | Binocular - Clear Aperture:80mm\3.15", Scope O.D.: 95mm\3.75", Black Polymer / Pair | $89.00 | | |
| TO-4000B | Binocular - Clear Aperture:80mm\3.15", Scope O.D.: 101mm\4.00", Black Polymer / Pair | $89.00 | | |
| TO-2750G | Binocular - Clear Aperture:50mm\2.00", Scope O.D.: 70mm\2.75", 2+ Glass / Glass | $129.00 | | |
| TO-3000G | Binocular - Clear Aperture:60mm\2.37", Scope O.D.: 76mm\3.00", 2+ Glass / Glass | $129.00 | | |
| TO-3250G | Binocular - Clear Aperture:60mm\2.37", Scope O.D.: 82mm\3.25, 2+ Glass / Glass | $129.00 | | |
| TO-3500G | Binocular - Clear Aperture:80mm\3.15", Scope O.D.: 90mm\3.50", 2+ Glass / Glass | $129.00 | | |
| TO-3750G | Binocular - Clear Aperture:80mm\3.15", Scope O.D.: 95mm\3.75", 2+ Glass / Glass | $129.00 | | |
| TO-4000G | Binocular - Clear Aperture:80mm\3.15", Scope O.D.: 101mm\4.00", 2+ Glass / Glass | $129.00 | | |
| Threaded Camera Filters |
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| SKU | Description | Price | Add |
| Thousand Oaks Threaded Camera Filters |
| TO-37T | 37mm Threaded Camera Filter Black Polymer | $49.00 | | |
| TO-46T | 46mm Threaded Camera Filter Black Polymer | $49.00 | | |
| TO-48T | 48mm Threaded Camera Filter Black Polymer | $49.00 | | |
| TO-49T | 49mm Threaded Camera Filter Black Polymer | $49.00 | | |
| TO-52T | 52mm Threaded Camera Filter Black Polymer | $52.00 | | |
| TO-55T | 55mm Threaded Camera Filter Black Polymer | $52.00 | | |
| TO-58T | 58mm Threaded Camera Filter Black Polymer | $52.00 | | |
| TO-62T | 62mm Threaded Camera Filter Black Polymer | $55.00 | | |
| TO-67T | 67mm Threaded Camera Filter Black Polymer | $55.00 | | |
| TO-72T | 72mm Threaded Camera Filter Black Polymer | $55.00 | | |
| TO-77T | 77mm Threaded Camera Filter Black Polymer | $59.00 | | |
| TO-82T | 82mm Threaded Camera Filter Black Polymer | $59.00 | | |
Available in individual square foot sheets or bulk rolls.
BLACK POLYMER: Exclusive Thousand Oaks Optical formula developed solely for SAFE solar observation. Unlike metallized Mylar (commonly used in food packaging), our Polymer gives a SHARP pleasing orange image versus unnatural pale blue. Mylar also reflects back your eyes in the mirror like surface making it difficult to see the sun. And contrary to claims by some manufacturers, two layers does not guarantee no pinholes in the coatings. Simply hold a Mylar viewer at arms length, close to a light bulb, to see this defect. The protective properties of our Black Polymer are throughout the substrate so there is never a concern about safety.
Our Black Polymer is also great for making safe & inexpensive filters for cameras, binoculars and custom solar viewers. It's easy to work with and extremely durable. Instructions included.
| SKU | Description | Price | Add |
| Thousand Oaks Black Polymer |
| TO6X6 | 6" x 6" Black Polymer | $10.00 | | |
| TO12X12 | 12" x 12" Black Polymer | $19.95 | | |
| TO12X24 | 12" x 24" Black Polymer | $37.50 | | |
| TO12X60 | 12" x 60" Black Polymer | $70.00 | | |
| TO12X120 | 12" x 120" Black Polymer | $115.00 | | |
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