Accept no compromises. Switch from Hydrogen Alpha to Sodium to Helium to Calcium and back again, effortlessly and accurately, using just one telescope. The DayStar Filters "Solar System" filter wheel allows you to view the Sun through up to four different filters with just the touch of a button. Each filter still has full +/- 1Å wing shift tuning capability, and the renowned Quantum precision control.

Any of the DayStar wavelengths, bandpasses, or quality combinations can be used. We can even load custom wavelengths for research applications. Call or email us to discuss your needs. Some of the possible combinations:

• Visual Observer's set: H-Alpha 0.6Å SE, Calcium-H 5.0Å SE.
• Imager's set: H-Alpha 0.5Å PE, Sodium-D1 0.4Å PE, Calcium-K 2.0Å PE.
• Prominence doppler set: Three H-Alpha 0.7Å PEs at wing shifts of -0.5, 0, and +0.5 Å.
• Research set: H-Alpha 0.4Å PE, Helium D3 0.3Å PE, Sodium D1 0.4Å PE, Calcium-K 2.0Å PE.

Already have a DayStar? We can move your existing Quantum, ATM, or University filters into the new housing. T-Scanner or SolaREDi owners can make use of the DayStar trade-up policy to lower the cost of entry.

Budget tight? Start with just two positions filled, then return it to the factory to add more filter positions at any time.

Total flexibility with no compromises. The DayStar Solar System filter wheel.

Prices:

Move existing user-provided filters into filter wheel: $4,950.

Example packages:
.5Å SE Ha / .4Å SE Na D / 2Å Ca II K: $19,000
.7Å SE Ha / .5Å SE Ha / 5Å Ca II H / 2Å Ca II K: $21,250
.7Å PE Ha / .5Å PE Ha / 5Å Ca II H / 2Å Ca II K: $26,750
.7Å SE Ha / .4Å PE Ha / 5Å Ca II H / .3Å PE He D3: $35,950

Note: additional cost for pupil plane applications.

Delivery time: current wait 6 months.

Specifications:

Dimensions	7" x 7.75" x 2.3" (178 x 197 x 58mm)
Weight	5 lb 2 oz (2.3 kg) when fully loaded.
Mounting	Accepts standard Quantum plates, providing mounting to T-thread, SCT thread, or 2" drawtube, for use with eyepieces or cameras.
Power	10 to 30VDC, 2.5 amps. International AC adapter included with choice of US, UK, European, or Australian power cords.
Positions	Minimum two, maximum four.
Filter change time	Less than three seconds.
Telescope compatibility	Refractor, SCT, Maksutov (if sufficient focus travel). Any aperture: 60mm, 90mm, 155mm, or more! Apochromatic refractor recommended for best results, achromats may require slight focus adjustment when changing positions.
Focal ratio	Best performance at F/30. Recommended range: F/27-F/35.
Remote control	RS-232 serial port required. Quantum Control software for Windows, or communication protocol available for programmers to utilize on other operating systems.