Observe the Sun

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Sun-watching combines scientific curiosity with a direct experience of nature. With the right equipment – ranging from a simple filter sheet to a specialised H-alpha telescope – the Sun becomes a fascinating subject for observation, offering new surprises every day.

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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 : 4-6 months (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 : 3-4 weeks (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)
 
 
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): 240
  • Thickness (mm): 15mm
  • Surface shape: L/4
  • Centre wavelength (nm): 656.28
  • Bandwidth (nm): 60
  • Peak transmittance (%): 95%
  • Cut-off range (nm): 200nm-1100nm
3399.00 €
Estimated delivery time : 1 week (valid for new orders)