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
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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.
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- You must purchase the item from our website before requesting your Price Match Guarantee
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Order Shipment If your order is received, the inventory is in stock and your credit card information matches the information, In most cases, we can ship within 5 business days. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address your provide when checking out. If you do not receive tracking information from us within six business days of your order please email us at firstname.lastname@example.org.
Miscellaneous Shipping Information
- We cannot ship to PO boxes.
- Non-standard shipping surcharges will apply to isolated service areas, such as remote areas, areas not readily accessible by a delivery vehicle, islands, Hawaii & Alaska etc., as defined by the shipper. These circumstances occur less than 1% of the time.
You can estimate the deliver time to your home or business by viewing the "Ships Within" information listed with every product. This refers to the time from when you place your order, to the time it leaves the warehouse. The total delivery time for your order is calculated from the time your order is placed, until you receive it. The diagram below shows how the total delivery time is broken down into pre-ship processing time and shipping time.
Processing time is the time it takes from when you submit your order to when the product leaves the warehouse. The "Ships Within" time frame listed with each of our products on the website applies to this time frame. For example, if your order a product that reads "Ships Within: 2 Weeks", this means that the product typically leaves the factory within two weeks. If there will be any additional time required to process your order, we will notify you immediately to confirm the delivery period. This time is needed for products that are shipped to you directly from our manufacturers. The manufacturers need this time to fulfill your order. In some cases, the items are custom built. Shipping time is measured when your order leaves the warehouse to when it arrives at your address. Actual shipping time can vary between 2-5 business days. Contact our helpful customer service experts at (888-264-2244) for more information.
Did your shipment arrive damaged or defective?
Please report damaged or defective merchandise to us immediately by email phone. Photos of the items and the packaging would be greatly appreciated. This will speed up our resolution process. We strongly recommend at the time of delivery, if your notice any cartons that look dented, crushed or just not right, open them immediately and inspect the contents. If the contents appear to be damaged, please notate it on the delivery ticket, refuse that item only and contact us as soon as possible for instructions.
Brands/Products that do NOT qualify for our 30 Day Return Policy:
APM products do not qualify for our 30 day return policy.
Additionally, items that are special ordered, customized, or engraved - cannot be returned or refunded under our 30 day return policy.
If your engraved item needs to be repaired within 30 days of purchase, please reach out to us and we will have the product repaired or replaced, re-engrave if necessary, and return it to you in new condition.
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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