# Eyepiece Tele Vue Nagler Type V 31 mm 2" - wide-field astronomical eyepiece

**URL:** https://aio.lv/en/product--oem-en5-310--11105023
**Data updated:** 2026-04-30 18:27 (EEST)
**Category:** Telescopes
**Manufacturer:** OEM
**Manufacturer code:** EN5-31/0
**EAN:** 0759270083755
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 901.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 745.03 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-en5-310--11105023

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Tele Vue Nagler Type V 31 mm 2" eyepiece is a wide-field astronomical eyepiece designed for 2-inch focusers. The 31 mm focal length delivers comfortable low-to-medium magnification with a broad apparent field of view, suitable for deep-sky observing and sweeping star fields. Compatible with telescopes using 2" eyepieces and ideal for visual observing and star-hopping.

## Long description

The Tele Vue Nagler Type V 31 mm 2" eyepiece is a wide-field astronomical eyepiece designed for 2-inch focusers. With a 31 mm focal length it provides comfortable low-to-medium magnification and a broad apparent field of view, making it suitable for visual observing of deep-sky objects, open clusters and wide star fields. The eyepiece is built to deliver edge-to-edge sharpness and a usable field that supports star-hopping and panoramic views through a compatible telescope.
Advantages
The eyepiece combines a large 31 mm focal length with a wide apparent field of view to create immersive views without excessive magnification. Optical design emphasizes contrast and sharpness across the field, reducing coma and off-axis aberrations for a clearer image of nebulae, galaxies and star clusters. The 2" barrel format increases exit pupil and sky coverage on telescopes with suitable focal ratios, while mechanical construction is intended to provide stable mounting and comfortable eye relief for extended observing sessions.
Suitable for
Visual deep-sky observing of nebulae, galaxies and star clusters
Wide-field planetary and lunar context views at lower magnification
Star-hopping and sweeping large areas of sky
Telescopes with 2" focusers or 2" eyepiece adapters
When it may not be suitable
This 31 mm wide-field eyepiece is not intended for high-power planetary detail where much shorter focal lengths are preferred. On very slow focal ratio telescopes (high f-number) the large exit pupil produced by a 31 mm focal length can lead to overly bright images or vignetting with some optical setups. Also, if your instrument only accepts 1.25" eyepieces without an adapter, this 2"-format eyepiece will not fit directly.
Key specifications
Focal length: 31 mm
Barrel size: 2 inch (50.8 mm)
Designed field of view: wide apparent field suitable for panoramic views
Intended use: visual observing and star-hopping
How to use
Fit the eyepiece into a telescope focuser or 2" adapter and secure it with the focuser thumbscrews. Begin with low magnification to locate targets and establish framing; the 31 mm focal length and wide field make it useful for initial sweeps and star-hopping. Adjust focus carefully for the sharpest view and use slow, steady movements of the mount to track objects across the field. For best results, pair the eyepiece with telescopes of focal ratios that balance field illumination and exit pupil size.
What to consider before purchase
Verify your telescope accepts 2" eyepieces or that you have a 2" adapter
Consider your telescope focal ratio to assess exit pupil and field illumination
Decide if a wide-field low-to-medium magnification eyepiece matches your observing goals
Usage recommendations
Use the eyepiece for initial locating and wide-field sessions, then switch to higher-power eyepieces for close-up planetary or lunar detail. Allow your eyes to adapt to the dark for improved faint-object visibility and use a stable mount to take advantage of the broad field of view.

## FAQ

### How much does the Tele Vue Nagler Type V 31 mm 2" eyepiece cost, and is it available for purchase?

The price is 901.49 € (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 30.06.2026 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 Tele Vue Nagler Type V 31 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

## Image

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