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- Description
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Details
Dimensions and Data
Detachable sun diaphragm holder for D-ERF 135 - 160 filter-frames
- Depth: 9.8mm
- Diameter: 175.3mm (+0.1/0)
- Dimensions of the 3x external clamping screws: 3 x 120°
- Depth of M3 thread center measured from the front: 5mm
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First Class H-alpha Solar Filters by SolarSpectrum
Temperature controlled H-alpha-filters (lambda = 656,3 nm) with electronic temperature control (combined heating and cooling!) All SolarSpectrum H-alpha filters at a glance --> Such professional filters show an unsurpassed abundance of details by using the full aperture of the telescope and are thus the first choice for semi-professional observers / photographers as well as for scientific use. Solar Spectrum H-Alpha Filters give you an incomparable view of our Sun's eruptive surface. The SolarSpectrum filters follow the classical design and are placed behind the telescope in the focuser (although this requires a D-ERF energy rejection filter in front of the lens). In combination with a telecentric system tuned to the focal length of the telescopic, between 2/3s of the aperture and the full aperture of the telescope can be used with most refractors and SC telescopes, depending on the telescope's f/ratio! The telecentric system parallels the beam of light and extends the focal ratio of the telescope to the mandatory value of about 1:30. Other narrow-band H-alpha filters are placed in front of the telescope lens. They are avaiable at affordable prices only up to 90mm diameter. For larger telescopes, the aperture of the telescope is stopped down by the filter....
Additional Information
| Manufacturer | Baader Planetarium |
|---|---|
| SKU (#) | 2459247A |
| EAN Code | 4047825044259 |
| Net weight (kg) | 0.220 |
