Omegon Herschel Prism Tess
When does the delivery take place?
Delivery times vary depending on the country and destination postal code. They will be shown at checkout and apply only to products currently in stock.
For products marked as Not in stock, processing may take between 5 and 15 days. If delays occur, our customer service will contact you with timely updates.
What are the warranty terms?
All our products come with a 24-month legal warranty. Some brands provide extended warranty. Contact us for more info.
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Can I return a product?
You have the right to return a product within 14 days from delivery, as stated in our Refund Policy. Return shipping costs are the responsibility of the customer. Items must be returned in their original condition and packaging. Please contact us before returning.
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Vai al moduloA 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 angle | 90° |
| Type | Herschel Prism – Solar Filter |
| Suitable for photography | yes |
| Suitable for visual observation | yes |