- Price Guarantee
- APM Returns
For solar white light imaging and white light visual observing. The APM White Light Wedge comes with a built in ND3 filter which allows perfectly safe imaging or visual observing of the Sun
The function of the Herschel prism (also called Herschelprima) is based on the principle that only a small part (approx. 5%) of the incident light is used for the actual observation. The part, which is incomparably larger and also energetic, is guided through the housing and forms a focal point outside the prism. Even far behind this focal point, the light concentration is still very intense, so that (with older prisms) caution had to be exercised, so that no inexperienced observer would accidentally look into the output light beam.
The APM Herschel prism is equipped with the ceramic light trap, an multicoated integrated multicoated ND3 filter and (removable) multicoated polarizing filter.
The sun can be safely observed with the APM Herschel Prism.The image brightness can be adjusted by twisting of the 2 "polarizing filter by rotating the 2" eyepieceholder from outside . Thus, the Herschel Prism can be used both visually and also photographically same good!
The clear optical aperture is 46mm!
The use of the Herschel prism (in comparison with film filters) for sun observation is not only more safe , but also of better quality. The image has more contrast, imore sharpness and allow higher magnification.
Important note: The application of the Herschel prism is only suitable for refractors and schiefspieglers .
The Production version has a white body !
The special features of APM Herschel:
- screwed on but also removable top-pole filter in the 2" plug-in sleeve
- Twisting of the 2" polarizing filter by a lever from the outside
- APM Fastlock eyepiece clamp
APM White Light Wedge Packages Include:
- APM 2" White Light Solar Wedge
- MC-coated Pre-Installed ND 3.0 Filter
- MC-coated Pre-Installed Polfilter
- Metal Carrying Case
- Die Cut Foam with room for accessories
volume weight: 8,00 kg
delivery time: in stock
product number: lager-APM-Herschel-2-DX
We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.
To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.
Our 100% Price Guarantee has some limitations:
- You must purchase the item from our website before requesting your Price Match Guarantee
- Promotions such as rebates and buy one, get one free offers are not eligible
- The item must be in stock on the competitors website
- The competitor must be an online store, they may not have a retail location
- The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
- The competitor must be an Authorized Retailer of the product in question
- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
APM products returns are subject to a 20% Restocking fee to ensure we can continue to offer exceptional value consistently.
If there is any quality control issue to be addressed, we ask that you follow the instructions on our shipping and returns page and we will make sure the issue is handled.
Some APM products are subject to import duties and/or taxes which you will be notified to pay at the time of delivery.
We do our best to take care of your shipping costs; however, special order products like these may come with a small additional cost to our customers.
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