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.
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)