# Eyepiece ESET Explore Scientific 25 mm LER 52° apparent field

**URL:** https://aio.lv/en/product--eset-0219525--11650907
**Data updated:** 2026-02-24 11:02 (EET)
**Category:** Telescopes
**Manufacturer:** ESET
**Manufacturer code:** 0219525
**EAN:** 4007922050973
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 86.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 71.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--eset-0219525--11650907

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 26.06.2026 | free |
| Pickup points | 01.07.2026 | 1.99 EUR |
| Courier delivery to door | 01.07.2026 | 4.99 EUR |

## Summary description

ESET Explore Scientific 25 mm LER eyepiece with a 52° apparent field is an optical accessory for telescopes that provides medium-power magnification and a comfortable field of view. Designed for visual observation of celestial and terrestrial objects, it fits standard focuser sizes and offers a balance between magnification and eye relief for prolonged viewing sessions.

## Long description

The ESET Explore Scientific 25 mm LER 52° apparent field eyepiece is an optical accessory for telescopes that delivers medium-power magnification with a 52° apparent field of view. It is designed to provide a balance between magnification and comfortable eye relief, suitable for prolonged visual observation of celestial and terrestrial objects. The eyepiece fits standard telescope focusers and is intended for users seeking stable, familiar framing for star fields, planets and deep-sky targets.
Advantages
This 25 mm LER eyepiece combines a moderate focal length with a 52° apparent field to produce a useful balance of magnification and field width. The long eye relief design reduces eye strain during extended observation sessions and accommodates users who wear glasses. Optical coatings and multi-element construction improve contrast and transmission across the visible range, helping render star fields and planetary details with clarity. The eyepiece’s standard barrel size and mechanical finish ensure secure fitting and smooth insertion into common focusers.
Suitable for
 Visual observation of the Moon and planets at medium magnification
 Wide-field views of star clusters and rich star fields
 Terrestrial viewing with appropriate diagonal or spotting setup
 Amateur astronomers using standard 1.25" or 2" focusers (check adapter requirements)
Key specifications
 Focal length: 25 mm
 Apparent field of view: 52°
 Long eye relief design for comfortable viewing
 Multi-element optical design with anti-reflective coatings
 Standard barrel compatibility for common telescope focusers
How to use
Insert the eyepiece into the telescope focuser or diagonal and secure it using the focuser’s locking mechanism. Start with a low- to medium-power setting to locate the target, then fine-tune focus using the telescope’s focuser knob until the image is sharp. If you wear glasses, adjust your eye position until the full field becomes visible while maintaining the recommended eye relief. For terrestrial viewing, use a right-angle diagonal suited to the eyepiece barrel size to obtain a comfortable viewing posture.
Usage recommendations
For best results, use the eyepiece under stable seeing conditions and pair it with a telescope whose focal ratio matches medium-power eyepieces to avoid vignetting or excessive field curvature. Clean optical surfaces with appropriate lens-care products and store the eyepiece in a dry, dust-free case when not in use.

## FAQ

### How much does the ESET Explore Scientific 25 mm LER eyepiece cost, and is it available for purchase?

The price is 86.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 26.06.2026 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. All transactions are 100% secure and encrypted.

### Can ESET Explore Scientific 25 mm LER 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 ESET 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 ESET 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/11650907/66920383_large.webp