Omegon Herschel Prism Tess

Not in stock: will be backordered
Product Code: OM87080
Regular price €229,00 EUR incl. VAT
Connection (telescope side)
FAQ
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A Herschel prism offers particularly high resolution for solar observation and sun photography.

  • Suitable for refractors only. For reflecting telescopes, use solar filters in front of the objective instead.
  • Careful handling is recommended. Do not use with low-cost telescopes containing plastic parts inside.
  • Telescopes pointed at the sun with a Herschel prism must always be supervised.

96% of sunlight passes through the prism and hits the ceramic disc, which converts it into heat. Therefore:

  • 2" prism suitable for objectives up to 150 mm diameter
  • 1.25" prism up to 120 mm

Advantages of Omegon Tess-Herschel Prisms

  • The diffuse spot on the ceramic disc is ideal for precisely aligning the telescope to the sun
  • Integrated polarising filter – Adjustable brightness: shorter exposure times, observation even in slight cloud cover
  • Integrated ND filter: safe observation with adequate image attenuation

Reliable connection for eyepieces and cameras:

  • The 2" prism features a Twist Lock and 2"/1.25" adapter
  • The 1.25" prism has T2 thread for cameras and a ring clamp

Technical Specifications

Viewing angle90°
TypeHerschel Prism – Solar Filter
Suitable for photographyyes
Suitable for visual observationyes

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