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Details about  Crayford Focuser Adapter for Celestron C100ED Refractor

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Crayford Focuser Adapter for Celestron C100ED Refractor
Item Ended
14 Nov, 2011 23:30:13 GMT
US $36.00
Approximately £23.07(including postage)
US $17.08 (approx. £10.95) USPS First Class Mail Intl / First Class Package Intl Service | See details
International items may be subject to customs processing and additional charges.  help icon for delivery - opens a layer
Item location:
Los Angeles, CA, United States


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Seller assumes all responsibility for this listing.

Item specifics

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition

Agena AstroProducts

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Crayford Focuser Adapter for Celestron C100ED Refractor

Crayford Focuser Adapter for Celestron C100ED Refractor

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Quick Overview
Product Name: Agena / GSO Crayford Focuser Adapter for Celestron C100ED Refractor
Item Condition: Brand New
Item Ships in US Via: USPS First Class or Priority Mail with delivery confirmation

1. Detailed Product Description

Note: This listing is for one adapter ring only as described below. No focuser or telescope is included.

The Celestron C100ED refractor is an excellent telescope. However, owners have long complained of the poor quality of the telescope's stock R&P focuser as its weakest point. Complicating the matter further is the fact that the stock focuser screws into the rear of the telescope tube. Unlike 95% of the other telescopes in the market, the focuser does not bolt to the tube. For those looking to upgrade the focuser, the only alternative until recently was to upgrade to a competing Crayford focuser + adapter costing over $300 - over half the cost of the entire telescope itself!

However, with Agena's new coupling adapter for the Celestron C100ED, you can now attach the very affordable and excellent 86mm GSO Crayford focuser to the C100ED in a few minutes. Installation is easy - just unscrew the stock R&P focuser from the Celestron C100ED tube, screw this adapter into the tube in its place, slide the GSO focuser into this adapter, and bolt it to the adapter using three M4 screws (included with the adapter). The only tool you need to provide is a Philips (cross-head) screwdriver. This upgrade will turn your C100ED telescope into the little beauty it was meant to be.  

This adapter will work with GSO's single or dual speed Crayford focusers that have an 86mm flange/base plate (focuser sold separately). It is precision CNC-machined from aluminum and anodized black to match the surface finish of the C100ED tube.

Relative to the stock R&P focuser, the GSO Dual-Speed Crayford/Agena Adapter combination will allow 22mm of additional in-focus travel which is a plus for imaging applications. On the flip side, our configuration will provide 7mm less of back-focus travel compared to the stock focuser but this is easily remedied with an extension tube, if necessary.
If you upgrade your stock C100ED focuser, we highly recommend that you purchase our Synta-style Finder Dovetail Base for Crayford Focusers (available in our eBay store), since you will loose the built-in finder base on the stock C100ED focuser body when you remove it.

Important Notes:

* Before ordering this item, please make sure you can unscrew the stock focuser from your telescope tube. It can be very stiff on some C100ED telescopes due to poor machining of threads, and a couple of people have been unable to unscrew the original R&P focuser from their telescope.

* A small percentage of Celestron tubes have poor threads machined to inexact tolerances. It is therefore possible that our adapter may not mate well with your tube, even if the stock focuser has no problems screwing back on. In such cases, we have determined that the problem is with the variance in the tube threads on the telescope, and not with our adapters, each of which is individually tested. If you must return your adapter due to this issue, please note that our standard return policy terms will apply and shipping costs are non-refundable.

Note: Occasionally, the product you receive might have a slightly different cosmetic appearance or labeling than what is shown. This can often change from batch to batch according to the whims of the manufacturer. However, you will always receive a brand new, original product as described above.

Text and photos - Copyright Agena AstroProducts. Reproduction without permission prohibited.

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Payment: We only accept Paypal and major credit cards through Paypal.

Shipping Method: United States Postal Service (USPS), unless otherwise specified.

Checkout: Please pay for the item(s) within 3 days from your account on eBay or by using the link in the email you receive from eBay.

Shipping Discount: We offer shipping discounts if you order multiple quantities/items. eBay will automatically show you the correct, discounted shipping costs when you check-out.

Combining Purchases: You can combine shipping for items purchased from us on eBay within 3 days. Buy the items individually, and check out together for all items. eBay will combine the shipping weights and show you the discounted shipping cost. You must check out for all items together via eBay for this. We cannot combine shipping costs after you check out individually for your purchases.

Sales Tax: 8.5% sales tax added if your Ship-To address is in California.

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Delivery Time: Most orders ship within 1 business day of receiving payment. First Class shipments will take 3-5 days to arrive after we ship it. Priority Mail shipments will take 2-3 days. However, these delivery times are NOT guaranteed by the USPS. Delays of up to 2 weeks can occur in about 5% of the shipments.

Tracking/Delivery Confirmation: We will send you a Delivery Confirmation number in the shipment notification email after your order ships. This is not detailed tracking, but it provides some very basic tracking info en route. Sometimes, the USPS neglects to update this info for a few days but your shipment is not affected.

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Shipping Cost: Click on the "Shipping and Payments" tab above and select your country to see your shipping choices and cost. If you need a shipping cost estimate for multiple items, please contact us.

Handling Fee: For all international orders, we charge an additional handling fee of 3% of the purchase price of the item(s). This will be added to your order total when you check out.

Delivery Time:

1) USPS First Class International: Delivery takes about 3-4 weeks after we ship your package. This can frequently take 4-6 weeks or more for several countries (up to 8 weeks for Brazil, Germany, Italy and South Africa). THERE IS NO TRACKING FOR FIRST CLASS SHIPMENTS. The information shown in your eBay account is just a customs form number - it is NOT a tracking number as incorrectly indicated by eBay. Once your package ships, we can do nothing but wait until your package arrives. Please do not become impatient and contact us in 2-3 weeks if your package has not arrived. If you don't receive the package in 6 weeks, contact us and we will work with you to resolve the issue. If you don't want to take the risk of this delay, then DO NOT USE First Class mail - use Priority or Express shipping instead.

(2) USPS Priority Mail International: Delivery takes 1 - 2 weeks after we ship your package. This can sometimes take 3-4 weeks to several countries. The USPS provides some basic tracking information for Priority shipping.

(3) USPS Express Mail International: Delivery usually takes 5-10 business days after we ship your package. You will receive a tracking number with which you can track your shipment from Note: If you use this option, you must send us your phone number when you check-out or else your shipment will be delayed. This is required for international postal forms.

Again, these delivery times are NOT guaranteed by the US Postal Service. The most common reason for delays is slow customs inspection and clearance in your country, and can be very long, even for Express mail packages. Upon shipping your order, delivery delays are beyond our control, so do not leave us negative feedback or file a Paypal claim if your package is delayed. Delays are quite common but losses are very rare, so your patience/cooperation will be greatly appreciated.

Customs and Duties: You are responsible for any duties and taxes that may be levied in your country. These are not included in the item price or shipping cost. We have no control over these charges and cannot predict what they may be or if they will be levied upon delivery. Customs policies vary widely from country to country (Some countries such as UK are strict about imposing hefty customs duties). It is your responsibility to check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Customs fees are normally charged by the delivery company or your country's postal service, or collected when you pick the item up. These fees are NOT additional shipping charges.

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US Orders: We must receive any returns within 14 days from the time you receive it. A minimum restocking fee of 10% will be levied for all returns and exchanges. A larger amount will be deducted if there is evidence of use or wear, dirt, scratches, missing packaging/parts, etc. Shipping fees are non-refundable and you are responsible for all return shipping costs. Please contact us first before returning an item.

International Orders: No returns/exchanges accepted unless the item we shipped is defective. Please research the product and ask us any questions BEFORE you purchase to make sure you are buying the correct item for your needs.

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