# Eyepiece Tele Vue Ethos 17 mm 2" 100° apparent field

**URL:** https://aio.lv/en/product--oem-eth-170--11339796
**Data updated:** 2026-03-20 09:48 (EET)
**Category:** Glasses
**Manufacturer:** OEM
**Manufacturer code:** ETH-17/0
**EAN:** 0759270083502
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 943.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 779.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-eth-170--11339796

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

Tele Vue Ethos 17 mm eyepiece, 2-inch barrel with a 100° apparent field. Designed for wide-field visual observations, it provides a large apparent field of view for deep-sky and planetary viewing when used with compatible telescopes. Ideal for immersive observing sessions and for users seeking expansive views and comfortable eye relief.

## Long description

The Tele Vue Ethos 17 mm eyepiece with a 2" barrel and a 100° apparent field provides a very wide immersive view for visual astronomy. Engineered for comfortable eye relief and edge-to-edge sharpness, this eyepiece is built to deliver expansive views of star fields, nebulae and planetary details when paired with compatible telescopes. Its optical design emphasizes a large apparent field of view while maintaining high contrast and minimal aberrations across the image.
Advantages
This 17 mm Ethos eyepiece offers a 100° apparent field that enables users to see a broad swath of sky without loss of image quality toward the edges. The 2" barrel format supports lower magnifications and wider true fields on telescopes with 2" focusers, while the design preserves sharpness, contrast and comfortable eye relief for extended observing sessions. The eyepiece is optimized for minimal internal reflections and high transmission to maintain fine detail and accurate star images.
Suitable for
Wide-field visual observation of deep-sky objects such as nebulae, open clusters and the Milky Way
Immersive star-field sweeping and landscape alignment for astronomical imaging framing
Planetary and lunar viewing when a wide apparent field and moderate magnification are desired
Use with 2" focusers on Dobsonians, refractors and large reflectors
Key specifications
Focal length: 17 mm
Barrel size: 2 inches
Apparent field of view: 100°
Design focus: wide-field, high-contrast visual observing
Optical performance: edge-to-edge sharpness with minimized aberrations
Eye relief: comfortable for extended observation (sufficient for eyeglass wearers in many cases)
How to use
Insert the 2" barrel into a compatible 2" focuser and secure with the focuser thumbscrew. Achieve focus by adjusting the focuser inward or outward until the image reaches sharpness. For best results, start with a low-contrast bright star or a well-defined planetary feature and fine-tune the focus. When surveying deep-sky targets, slowly pan the telescope to bring extended objects into the wide apparent field and allow dark-adapted vision to enhance faint details.
Usage recommendations
Use this eyepiece primarily for visual observing sessions where a wide apparent field enhances the experience. Pair it with telescopes that support 2" eyepieces to realize the full true-field advantages, and consider using a field stop or dew shield under moist conditions to protect optics. For eyeglass wearers, adjust eye position to find full field illumination and avoid stray light by using a suitable eyepiece shade.

## FAQ

### How much does the Eyepiece Tele Vue Ethos 17 mm 2" cost, and is it available for purchase?

The price is 943.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 25.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Eyepiece Tele Vue Ethos 17 mm 2" be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All OEM products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized OEM service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11339796/65878131_large.webp