- Price Guarantee
Vixen Optics' ED81S 81mm f/8 Apochromatic Refractor Telescope is an ideal optic for both celestial observation and astrophotography. Optically, it is designed with a fully multi-coated, apochromatic super-low dispersion (SD) lens system that corrects both spherical and chromatic aberrations. This correction creates a wide flat field of view without distortion and removes the blue-tinted "halo" effect and off-axis coma for true high-contrast color transmission. The optical tube assembly (OTA) is made and assembled in Japan to the high standards expected from such production.
The scope can be used for multiple astrophotography techniques including prime-focus, afocal imaging, or eyepiece projection. A traditional rack-and-pinion focuser, with adapter rings, is employed to be able to handle the heavier loads of astrophotography rigs and can accept 1.25" eyepieces and accessories for making visual observations. Vixen includes a flip-mirror diagonal that allows the use of two different eyepieces for observational flexibility, or an eyepiece and imaging system that lets users simply flip the mirror to check alignment and tracking accuracy between exposures without having to touch the imager. While the OTA is offered here without a mount or tripod, a Vixen-style dovetail plate that fits on compatible saddles is included, along with a mounting ring assembly with an integrated carrying handle to make setup and breakdown easier.
f/8 focal ratio
625mm focal length
Refractor optical system
Anti-reflection multi-coated optics improve light transmission for brighter, high-contrast images
Apochromatic lens configuration corrects for spherical and chromatic aberration to produce distortion-free images with accurate color representation
Super-low dispersion (SD) glass elements correct for chromatic aberration to increase true color fidelity and improve contrast
Resolution: 1.43 arcsec
Sturdy rack-and-pinion with 50.8mm and 60mm mounting thread for imaging accessories and 1.25" eyepiece holder
Red-dot finder with bracket
Dual 1.25" eyepiece holders
Internal flip mirror allows the use of two eyepieces, or eyepiece/imaging combination
Able to perform various astrophotography techniques including eyepiece projection, prime-focus, and afocal imaging
When imaging, quickly flip mirror to check tracking between exposures without un-mounting imaging rig
Back focus from rear edge of focuser body: 149.0mm
Back focus with reducer from rear edge of reducer: 63.5m
60mm and 50.8mm T-threads on straight-through light path allow the use of optional camera-specific T-rings
OTA only, requires mount and tripod for proper use
Includes a set of two mounting rings
Integrated Vixen-style dovetail plate
Integrated carrying handle makes setup and breakdown more safe and secure
Weight: 5.1 pounds
We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.
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.
Our 100% Price Guarantee has some limitations:
- You must purchase the item from our website before requesting your Price Match Guarantee
- Promotions such as rebates and buy one, get one free offers are not eligible
- The item must be in stock on the competitors website
- The competitor must be an online store, they may not have a retail location
- The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
- The competitor must be an Authorized Retailer of the product in question
- The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax
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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.
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