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Did you know that most telescopes work well for daytime viewing as well as for astronomy If you have a refractor or a catadioptric telescope (the Schmidt-Cassegrain is the most popular example), and you would to use it for terrestrial observations, the most useful additional accessory you can buy is an erect-image diagonal.
If you look through your telescope with the standard mirror or star diagonal installed, you will notice that objects may be either upside down, flipped so that you see a mirror image, or a bination of the two. This is fine for observations of celestial objects, but it can be a little confusing when you are trying to track a boat as it moves through the water, or an eagle as he flies towards his perch.
Luckily, this is an easy problem to correct. Simply remove the standard diagonal from the telescopes focuser or visual back, and install the 45 Erect Image Diagonal. Now, when you insert an eyepiece, objects will be right side up and left-to-right correct. The 45 angle of this Amici prism diagonal is very fortable for daytime observations, where the telescope is often in a horizontal position.
Please Note: Adding an erect-image diagonal to a Newtonian reflector will result in images that are right side up and left-to-right correct. The optical design of a Newtonian will always produce images that are rotationally off in orientation. This does mean that you cant use a Newtonian reflector during the day, it just means that you have to get used to objects oriented in unrealistic positions.
- A great accessory for daytime terrestrial viewing with your telescope
- This 1.25" diagonal produces right side up and left-to-right correct images when used with refractors and catadioptric (Schmidt-Cassegrain) telescopes
- Inserts into 1.25" focusers or visual backs. Accepts standard 1.25" eyepieces
Dimension: 2.1 x 4.4 x 3 inchs., Weight: 0.3lbs.
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- We only accept payment via PayPal. Please kindly check if you can do the payment via PayPal before placing an order. If you don't have PayPal account.
- Payment must be received within 7 days after auctions ended. Unpaid dispute will be filed to eBay for the non payable bidders.
- Items are dispatched within 24 hours (except weekends and holidays) and shipped from US.
- Orders from the United States will all be shipped out via USPS. The shipment usually takes 1-7 business days (Saturday and Sunday excluded). If you need the item urgently, please contact us for detail before purchase.
- Orders from Canada or Maxico will all be shipped out via USPS International Service.
The shipment usually takes 2-10 business days (Saturday and Sunday excluded).
If you need the item urgently, please contact us for detail before purchase.
- Local pick up is not available.
- Customers in Porto Rico, Alaska and Hawaii are recommended to contact us for shipping details (shipping cost time) before placing an order.
The warranty shall not apply to the following circumstances:
a) Damage caused by undue ware tear, misuse, improper installation or operation, neglect, accidents.
b) Damage caused by natural disasters, flood fire, lightning or pollution.
c) If item was opened, any parts removed or repaired by any unauthorized person.
d) If damaged parts are the TFT screen or the screen has less than 3 dead pixels.
- This product comes with 30-Days Money Back Guarantee.
- If you receive an item and it doesn't work properly or you don't like it because of any reason at all,
we have a 100% refund/return policy. We will ship you a new item or refund your money for the full sale amount.
- For all returned products, buyers MUST contact us for the returning address.
Filed under: Eyepieces & Accessories