Optical Accessories

Accessories for solar observation (optical)

Here you can find all the accessories with which you can equip, upgrade and add to your telescope.

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The photographic filter is designed for solar photography in calcium light.

  • Telescope side connection is 1.25" and 2".
  • Camera side mount is 2" with ring clamp
  • Transmission at 393.3nm - FWHM is 3nm
  • Maximises contrast of sunspots, granulation and faculae on the solar surface
  • Ideal for use with a Herschel prism
  • The filter is not intended for visual viewing
475.00 €
Estimated delivery time : 3-4 days
 
 

Antlia Solar Discover Dualband ERF filter 130 mm in cell

1114.00 €
Estimated delivery time : 3-4 days
 
 

Antlia Solar Discover Dualband ERF filter 150 mm in cell

1449.00 €
Estimated delivery time : 3-4 days
 
 

Antlia Solar Discover Dualband ERF filter 200 mm in cell

2635.00 €
Estimated delivery time : 3-4 days
 
 

The photographic filter increases contrast on the solar surface in the calcium and H-alpha ranges.

  • Telescope side connection is 1.25" and 2".
  • Camera side connection is 2" with ring clamp
  • The filter has a wider transmission in the calcium and H-alpha ranges
  • Enhances the contrast of sunspots, granulation and details on the edge of the "solar disk
  • Ideal for use with a Herschel prism
  • Not intended for visual observation
222.00 €
Estimated delivery time : 3-4 days
 
 

The filter reflects heat radiation and is designed for small refractors and camera lenses. It is necessary for H-alpha and calcium solar photography.

  • 2" filter thread with M48x0.75 external thread - low profile mount
  • Suitable for use in front of the H-alpha or calcium attachment for refractors up to 100mm aperture
  • Suitable for small camera lenses or refractors in front of the lens
  • 25 nm transmission in the H-alpha and calcium range - Transmission 90
  • Min. 1/4 lambda accuracy - plane-parallel discs in high quality cell
149.00 €
Estimated delivery time : Unbekannte Lieferzeit
 
 
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 € 335.00 €
Estimated delivery time : 1-2 days
 
 
High quality 1 1/4" Herschelwedge with built in ND3.0 filter for safely solar observation and photography.
229.00 € 199.00 €
Estimated delivery time : 1-2 days
 
 
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
 
 
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
 
 
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
 
 
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