High Quality 1.25\" Cheshire Collimating Eyepiece for Telescope, Long Version BNB For Sale
![High Quality 1.25\](telescope-image-large/g/eHEAAOSwYodgBL7O/s-l1600/High-Quality-1-25-Cheshire-Collimating-Eyepiece-fo.jpg "High Quality 1.25\")
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High Quality 1.25\" Cheshire Collimating Eyepiece for Telescope, Long Version BNB:
$33.35
High Quality 1.25\" Cheshire Collimating Eyepiece for Telescope, Long Version BNBThis product data sheet is originally written in English.
It is an essential collimation device for any reflector telescopes and also a great accessory for precisely collimating the optics of your reflector telescope to achieve the best image the telescope can deliver.
- Well built black anodized solid aluminum metal body
- 15cm Long
- Soft eyecup.
- Free dust caps
- Brass Crosshair
- Fitting diameter 1.25 inch
No instructions are included with the item but this kind of information can be found easily on the internet. Here is some tips for using it.
To use the collimating eyepiece,
- insert it into the eyepiece tube of your telescope and illuminate the angled ring.
- Sight down the tube and note the crosshair target.
- Center the First Mirror (diagonal in a Newt, secondary in a CAT) on the crosshair, and adjust its tilt until the bright ring the collimator is producing is centered in the reflection.
- Next, adjust each successive mirror in the scope so that the image of the ring is concentric with the optic. Professional opticians refer to this as “working BACK THROUGH the system,” ie.: adjusting each mirror in succession from the eyepiece outwards. In other words, before you align the primary on a CAT system, you have to have the secondary aligned, because it’s the first thing you SEE while looking up the tube.
The Cheshire eyepiece can be used day or night, on just about any reflecting telescope.
I also have a short Cheshire Collimating eyepiece for sale
181107523622. Please visit my ebay shop at https://stores.ebay.co.uk/Joys-Optics for more bargains!
Delivery:
1.25\" Cheshire Collimating Eyepiece for Telescope,
Long Version
Delivery: Free P&P for UK buyers.
The item will be posted to you the same day by Royal Mail First Class Post when your payment is received before 13:00 O\'clock. Otherwise, it will be posted the next day. Please note that all payment received over the weekend will be posted the following Monday. International Buyers please see postage details.
Seller note about the postage: I have been trying my best to reduce my P&P charges for all my clients. You can find this information from Royal Mail\'s webpage: https://www.royalmail.com/personal/uk-delivery/1st-class-mail
Buy from a UK PowerSeller with more than 24,000 happy customers and buy with TOTAL confidence!
Next, adjust each successive mirror in the scope so that the image of the ring is concentric with the optic. Professional opticians refer to this as “working BACK THROUGH the system,” ie.: adjusting each mirror in succession from the eyepiece outwards. In other words, before you align the primary on a CAT system, you have to have the secondary aligned, because it’s the first thing you SEE while looking up the tube. The item will be posted to you the same day by Royal Mail First Class Post when your payment is received before 13:00 O\'clock. Otherwise, it will be posted the next day. Please note that all payment received over the weekend will be posted the following Monday. International Buyers please see postage details. Seller note about the postage: I have been trying my best to reduce MPN Does Not Apply Brand Unbranded/Generic Type Refractor EAN 852662813098
