# Tele Vue Ethos 21 mm 2" Eyepiece

**URL:** https://aio.lv/en/product--oem-eth-210--11105049
**Data updated:** 2026-06-07 13:16 (EEST)
**Category:** Telescopes
**Manufacturer:** OEM
**Manufacturer code:** ETH-21/0
**EAN:** 0759270083557
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 146.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 947.51 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-eth-210--11105049

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The Tele Vue Ethos 21 mm 2" eyepiece is a high-performance optical accessory designed for astronomical telescopes. Featuring a 100-degree apparent field of view, it provides immersive, wide-field observations with exceptional clarity and contrast. This premium eyepiece is engineered for demanding observers seeking superior edge-to-edge sharpness and comfortable eye relief, making it ideal for deep-sky object viewing.

## Long description

The Tele Vue Ethos 21 mm 2" eyepiece is a premium optical component designed to transform your astronomical viewing experience. With a massive 100-degree apparent field of view, this eyepiece creates an immersive, "spacewalk" sensation, allowing observers to take in vast areas of the night sky without the tunnel-vision effect common in narrower designs. It is meticulously engineered to provide high-contrast, sharp images across the entire field, ensuring that stars remain pinpoint-sharp even at the edges.
Advantages
The primary advantage of the Tele Vue Ethos 21 mm is its sophisticated optical design, which balances a wide field of view with excellent correction for aberrations. This results in a flat, distortion-free image that maintains high light transmission and color fidelity. The robust construction and high-quality coatings ensure durability and longevity, while the ergonomic design provides comfortable eye relief, making it suitable for extended observing sessions without causing eye fatigue.
Suitable for
Deep-sky observation of nebulae, galaxies, and star clusters
Wide-field scanning of the Milky Way
High-contrast planetary viewing when atmospheric conditions permit
Use with large-aperture telescopes requiring high-performance optics
When it may not be suitable
This eyepiece may not be suitable for users with telescopes that have very fast focal ratios where coma correction is not otherwise addressed, as the extreme field of view can highlight optical limitations of the telescope itself. Additionally, its physical size and weight may require a sturdy focuser and a well-balanced telescope mount.
Key specifications
Focal length: 21 mm
Barrel size: 2 inches
Apparent field of view: 100 degrees
Eye relief: 15 mm
Optical design: Multi-element premium glass
How to use
To use the Tele Vue Ethos 21 mm, insert the 2-inch barrel into your telescope's focuser and secure it firmly with the locking screw. Once seated, adjust your telescope's focus knob until the image appears sharp. Because of the wide 100-degree field, it is recommended to center your target carefully to take full advantage of the expansive view. If you wear eyeglasses, ensure your eyes are positioned at the appropriate distance to maintain the full field of view.
What to consider before purchase
Ensure your telescope focuser is compatible with 2-inch accessories
Verify that your telescope mount can handle the weight of a premium, heavy-duty eyepiece
Consider the balance of your telescope, as the weight of this eyepiece may require re-balancing the tube
Usage recommendations
For optimal performance, keep the eyepiece lenses clean using professional optical cleaning supplies and store it in a dry, dust-free environment when not in use. Always use the provided caps to protect the glass surfaces from scratches and debris.

## FAQ

### How much does the Tele Vue Ethos 21 mm 2" Eyepiece cost, and is it available for purchase?

The price is 1,146.49 € (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 17.07.2026 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 Tele Vue Ethos 21 mm 2" Eyepiece 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