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- High-performance Super FPL-53 ED glass lens
- Short overall length and low weight
- Ideal for planetary observation and photography
- Illumination with a 44mm image circle for full format
- Pure-color, high-contrast images
A new 81 mm apochromatic refractor with high-performance Super ED glass (= SD). The FPL53 glass reproduces an extremely clear and sharp image through an extremely high level of elimination of residual color defects. The SD glass is designed in such a way that it brings all the rays of violet, red, blue, yellow and green together very precisely on the same plane.
The special lens material reduces the chromatic aberration about all colors. In combination with the new optional SD Reducer HD Kit or SD Flattener HD, these refractors enable illumination with a 44mm image circle for full format SLR cameras.
The advantage of these SD refractors is their short length and low weight. The ED81SII, ED103S, ED115S refractors were originally developed for the visual observer or photographer with APS-C cameras. However, the new SD series has also been optimized for the use of full-frame cameras by replacing new inner panels. The large focuser enables heavy cameras to be attached without tilting.
The included folding mirror allows comfortable observation, even in unfavorable observation situations, and also offers a T2 thread for connecting a DSLR camera.
- Refractor SD81S telescope
- Pipe clamps
- Flip mirror folding mirror
- Dovetail rail
- Red dot finder
|Optical design||Apochomatic Refractor|
|Mirror/Lens diam.||81 mm|
|Focal length and Aperture ratio||625 mm f/7.7|
|Angular resolution||1.43 arc seconds|
|Eyepiece adapter||50.8mm (2 inches) and 31.7mm (1.25 inches)|
|Visual limiting magnitude||11.3 (approx., mag)|
|Viewfinder||XY Red Dot Finder II|
|Dimensions and weight||90mm dia x 585mm, 3.6kg|
Vixen warranties its products to be free from initial defects in materials and workmanship for a specified period based on part type:
Vixen Electronic Parts: Limited One Year Warranty
Vixen Mechanical Parts: Limited Two Year Warranty
These warranties do not cover defects caused by owner negligence. If a product has a qualifying defect, Vixen will repair or replace such product or part thereof that upon inspection by Vixen or an authorized representative is found to be defective in materials or workmanship. As a condition to the obligation of Vixen to repair or replace such product, the product must be returned together with proof‐of‐purchase and product registration satisfactory to Vixen. Repair Procedure: To initiate the repair process for any Vixen product that presents with a defect during the period covered by the warranty, please contact a Customer Service representative at (855) 875-4515 or by email at firstname.lastname@example.org to obtain a Return Merchandise Authorization (RMA) number and shipping address information. Once you have received the RMA number, return said product or part to Explore Scientific. Customers are responsible for all shipping costs related to repairing the unit both returning the product to our facility and return shipment. In the event that you must return your Vixen product to Explore Scientific, we recommend that you use a carrier that offers shipment tracking for all returns with the ability to insure your package for full value and safe return to Explore Scientific so that you are completely protected if the shipment is lost or damaged in transit. (If you choose not to (1) use a carrier that offers tracking or (2) insure or declare the full value of the product, you will be responsible for any lost shipment.) Each return must include the RMA number (which should be written on the outside of the box), and proof of purchase to show that the return is within the warranty window, a written statement detailing the nature of the claimed defect, as well as your name, return shipping address, and a phone number where we and/or the carrier returning your product can reach you. (Usually included on the RMA Paperwork) Once the product arrives at Explore Scientific, our Quality Control team will inspect the item and address the reported problem if possible. If the Explore Scientific representatives are unable to repair the product, it will need to be returned to Japan for repair. At that point, the customer will be notified that the item needs to be returned to Japan for repair. Customer will be informed of bi‐directional shipping costs related to returning the product to Vixen headquarters in Japan. To reduce those costs, Explore Scientific will be consolidating shipments to Japan once a month, and said product will also return together once corrected
Ordering from Outer Limit Telescope
We strive to make the ordering process as easy as possible for our customers. Our website is designed to provide a simple, streamlined shopping experience. Orders can be placed online. Our Customer Service Experts are trained in the Telescope industry and are willing to go the extra mile to help you with product selection, shipping, or any other questions you may have. Our Customer Service professionals are not paid on commission so you can rest assured you will not be pressured or hassled. We refuse to outsource our customer's calls to a call center, We want to be the point of contact so we can give you the expert service you deserve. We are here to help! We do reserve the right to refuse or refund any order due to unforeseen circumstances, including pricing errors and online ordering errors. Customers whose orders are affected by such unforeseen circumstances will be contacted within one business day.
Our products are shipped directly from the manufacturer to your doorstep. This saves us warehousing costs, savings which we can pass onto you! However, this means that your product will typically arrive without an invoice or packaging receipt. Thus, the order confirmation you receive from us via email serves as your official receipt. You will see the order number along the top. If you have lost your receipt or it never arrived, simply contact our customer service team and we will be happy to send you another one.
Cancelling An Order
Once the order is placed with us, we will submit an order directly to the manufacturer on your behalf. This occurs immediately after an order is placed by a customer (7 days a week). Once this step has been completed, Outer Limit Telescopes and thus the customer become financially obligated to purchase the ordered merchandise from the manufacturer. All order cancellations are subject to a 25% cancellation fee. No exceptions. If your order has shipped it cannot be cancelled, but it can be returned under our Standard Return Policy. To cancel an order, please call our helpful customer service experts using the number at the top of the page! Since time is of the essence, it would be best if you called us rather than send us an email. Refunds will be credited to the original payment method and can take up to 72 hours to reflect on your credit card statement.
We accept several methods of payment as listed below. No matter what method you choose, we guarantee that every transaction you make on our site will be 100% secure. All prices are listed in U.S. dollars.
Credit Cards - We currently accept Visa, MasterCard, American Express, and Discover cards. You can safely enter your entire credit card number via our secure server, which encrypts all submitted information.
Items sold and shipped to destinations in the United States are tax-free. With the exception of New York.
Your tracking information is emailed to you when your order ships. Orders are tracked using a tracking number and the website on the delivery carrier. If you have any questions, or if your delivery seems behind schedule, our friendly Customer Service Experts are always there to help.
Occasionally due to popularity of an item, a product is placed on back-order until additional inventory is received. This happens very rarely, and when it does, you will be notified immediately by one of our Customer Service Experts.
FREE STANDARD SHIPPING - Upon placement of the order, the parcel should ship out within 5 business days. Some products require a signature and some do not, it will depend on the price of the product. If the delivery driver does not feel comfortable leaving the package outside the home, they will keep it at a pickup location and leave you a note or attempt re-delivery at a later date.
As soon as you place your order, you will receive an order confirmation e-mail. This means that we have received your order in our system and pre-authorized your payment method for the purchase. As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment. If your item is on back order or unavailable, we will void the pre-authorization and reach out to you via phone or e-mail. If your item(s) are available for immediate shipment (within five business days), we will process the charges and submit the order for delivery.
All products are shipped directly from the manufacturer. As a result, shipment times may vary.
If your order is in stock and we process the charges to your payment method, it will ship within five business days from the date of your order. We will send you a shipping notification within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive shipping information from us within six business days of your order, please follow up with us at email@example.com or give us a call @ (855) 875-4515
Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make a note of it on the document when signing for delivery. If your item(s) do arrive damaged, please send photos to firstname.lastname@example.org, and we will process a return/refund on your behalf.
Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
All returns require an RMA number ( Return Merchandise Authorization). Please contact us at email@example.com or call us at (855) 875-4515 and we will be more than happy to help with this process. No returns will be accepted without an RMA number, no exceptions.
Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.
Additional non-returnable items:
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
There are certain situations where only partial refunds are granted (if applicable)
Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened
Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at firstname.lastname@example.org
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at email@example.com
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.
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