| ₹ 184320.0 includes GST and import duties. | |
| B2B customers can avail ₹ 28108.8 ITC on this product | |
| 100% Secure Payments | 100% Genuine product | |
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Description
- Use Questar OTAs for Solar Viewing
- Questar Eyepiece and Rear Port Threads
- 656nm H-Alpha Filter
- 21mm Clear Aperture Blocking Filter
- Tuned for Chromosphere Viewing
- ±0.5? Wing Shift Tuning
- For Questar Telescopes up to F/3
- No OTA Aperture Limitations
- 5 VDC, 1.5A micro-USB Port
- Optional Off-Axis ERFs Required
Designed specifically for Questar telescopes, but similar to their standard Quark, Daystar Filters ' Questar Quark H-Alpha Eyepiece Solar Filter is outfitted with Questar-specific eyepiece and rear port threads to install quickly and easily, without adapters, directly into your OTA.
This all-in-one hydrogen-alpha filter is engineered to eliminate unnecessary components which reduced the size and weight, and enabled it to fit in a compact form factor that simply threads onto either port and accepts standard 1.25" eyepieces. It is tuned specifically for viewing chromosphere details. The chromosphere's surface structure behaves differently in active regions than quiet areas, where magnetic field lines are stronger, so viewing this portion of the sun provides a constantly-changing observational.
While there are no OTA aperture limitations, Daystar recommends the use of front-mount aperture-reducing off-axis energy rejection filters. The filter is powered via a micro-USB port, and Daystar includes a power cord and an AC adapter to meet the high-power requirements of 5 VDC 1.5A. To enable its use at home and abroad, a set of international outlet plugs is provided with adapters for the US, UK, EU, and Australia.
- Filter Properties
-
- Hydrogen-alpha bandpass
- Integrated 25mm blocking filter
- 21mm clear filter aperture
- Tuned to 0.5-0.3? for viewing chromosphere details
- Tuning knob allows for ±0.5? wing shift for Doppler-shift compensation
- Markers at every 0.1? for reference and repeatability
- Internal baffles increase contrast
- Optical coatings designed specifically for 656nm H-alpha wavelength
- LED indicators for power, warming, ready, and fault
- Use and Handling
-
- Built with Questar eyepiece and rear port threads
- For off axis energy rejection filters
- Brass compression ring to protect eyepiece from scratches
- Accepts 1.25" eyepieces
- Recommended OTA Specifications
-
- For use with Questar telescopes
- No aperture limitation
- Must use a front-mount energy rejection filter to prevent overheating the OTA
- Not for use with full aperture Schmidt-Cassegrain ERFs - damage to secondary mirror may result
- Best performance with f/13 and slower focal ratio OTAs
- Power
-
- 5 VDC, 1.5A micro-USB port
- 90-240 VAC wall adapter
- Set of international outlet plugs for US, UK, EU, and Australia
| Type | Hydrogen-Alpha |
| Filter Factor | 0.5 - 0.3 ? |
| Blocking | 25 mm, 21 mm clear aperture |
| Application | Chromosphere viewing |
| Size | Questar eyepiece and rear port thread Accepts 1.25" eyepieces |
| Multi-Coated | Yes |
| Power Requirement | 5 VDC, 1.5 A |
| Construction | Aluminum alloy |
| Dimensions | 5.7 x 2.8 x 2.2" / 14.6 x 7.1 x 5.5 cm |
- Wedge Adapter
- Quark H-Alpha Filter
- Plastic Case
- USB Power Cord
- Wall Outlet Power Adapter
- Set of International Plug Adapters
- Limited 10-Year Warranty
Bulk Discount
| Quantity | Price |
| 2 | ₹ 180633.6 |
| 3-5 | ₹ 178790.4 |
| 5-10 | ₹ 175104.0 |
| 10+ | ₹ 171417.6 |
Bulk discount will be automatically applied during checkout based on quantity.