Observe the Sun
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Sonnenbeobachtung
Solar observation is a very interesting area of Astronomy. There is something new to see here practically every day. Our home star is constantly changing! Regardless of in white light or in the narrow-band hydrogen or calcium band, observations of the processes on the sun are very impressive!
The Antlia Solar Discover CaK 5Å solar filter is designed to optimize the contrast of images of flares, supergranulation cells, flares, sunspots and other visible features in calcium K (CaK) light at 393.3 nm by using very narrow bandpass filters.
Antlia Solar Discover 5 Ångström CaK calcium filters for extremely high-contrast solar photography
- Telescope side connection is 1.25" and 2"
- Camera side connection is 2" with ring clamp
- Transmission at 393.3 nm - FWHM is only 0.5 nm or 5 Angstroem
- Provides extreme contrast of sunspots, granulation and flares on the solar surface
- The filter is not intended for visual observation
- Free aperture of 12 mm
- For telescopes from 100 mm aperture we recommend an ERF filter in front of the objective for safe use
- The filter is optimized for refractors with a focal ratio of f/7 or higher. The optional Barlow lenses from Antlia can be integrated into the filter
- integrated Barlow lens (2x, 3x or 5x)
1259.00 €
Estimated delivery time : 3-4 days (valid for new orders)
APM Ceramic Safety 2" Herschelkeil with APM Fast-Lock Eyepiece Adapter
Characteristics:
- High quality surfaces for best contrast values
- Completely closed body with light catch
- Pre-installed ND3 filter and integrated polarizer
- Setup of the polarizer by turning the eyepiece sleeve
- APM FastLock eyepiece sleeve
- Delivery with solid Aluminum case
- Backfocus 115 mm
- Weight 830 grams
369.00 €
Estimated delivery time : 1-4 days (valid for new orders)
High quality 1 1/4" Herschelwedge with built in ND3.0 filter for safely solar observation and photography.
229.00 €
Estimated delivery time : 1-4 days (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 100
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
499.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 100
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
- with metal cell 146mm
699.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 130
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
799.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 130
- with metal cell 178mm
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
999.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 150
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
999.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 150
- with metal cell 230mm
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
1249.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 200
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
1649.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 200
- with metal cell 248mm
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
1999.00 €
Estimated delivery time : 1 week (valid for new orders)
Energy protection filters are long-pass filters that block short-wave light. A coating blocks IR. This means that the filters of an H-alpha telescope are only exposed to red light.
- Diameter (mm): 200
- with metal cell 330mm
- Thickness (mm): 12mm
- Surface shape: L/4
- Centre wavelength (nm): 656.28
- Bandwidth (nm): 60
- Peak transmittance (%): 95%
- Cut-off range (nm): 200nm-1100nm
2099.00 €
Estimated delivery time : 1 week (valid for new orders)
