# Eyepiece Skywatcher SW-5401 10mm Inverting Image, 10 mm focal length

**URL:** https://aio.lv/en/product--skywatcher-sw-5401--11034237
**Data updated:** 2026-02-25 16:40 (EET)
**Category:** Telescopes
**Manufacturer:** Skywatcher
**Manufacturer code:** SW-5401
**EAN:** 5901691604162
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 33.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--skywatcher-sw-5401--11034237

## 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

Skywatcher SW-5401 10mm eyepiece produces an inverting image and has a 10 mm focal length. Designed for use with compatible telescopes, it provides higher magnification for planetary and lunar observation. The compact eyepiece is suitable for visual astronomy where an inverted view is acceptable; it helps increase detail resolution at higher magnifications.

## Long description

The Skywatcher SW-5401 10mm eyepiece delivers an inverting image with a 10 mm focal length designed for use with compatible refractor and reflector telescopes. This compact eyepiece increases magnification compared with standard low-power oculars, making fine details on the Moon and planets more accessible to visual observers. Its simple optical layout focuses on delivering a clear, high-magnification view where image inversion does not affect observational goals such as planetary detail, lunar surface study, and close double-star separation.
Advantages
This eyepiece offers higher angular magnification due to its 10 mm focal length, enabling improved resolution of small surface features on bright solar system objects. The inverting image design is optically straightforward and typically lighter and more compact than erecting eyepieces, which makes the SW-5401 convenient for portable setups and quick field use. Its construction is intended to provide consistent focal placement and stable eye relief for visual observation at medium-to-high magnifications.
Suitable for
 Planetary observing (Mars, Jupiter, Saturn) where higher magnification is required
 Lunar surface observation and crater detail studies
 Visual double-star splitting and high-resolution backyard astronomy
 Portable telescope setups and observing sessions where compact eyepieces are preferred
Key specifications
 Focal length: 10 mm
 Image orientation: inverting (rotated or upside-down view)
 Intended use: visual astronomy with compatible telescopes
 Form factor: compact eyepiece suitable for higher magnification
How to use
Insert the eyepiece into the telescope’s focuser or diagonal and secure it according to the telescope’s fastening method. When observing, start with a low-power eyepiece to locate and center the object, then switch to the 10 mm eyepiece to increase magnification and resolve finer detail. Because the eyepiece produces an inverting image, orientational references such as star charts should be adapted or used alongside erecting optics if an upright view is required. Adjust the telescope focus and observer eye position to obtain a sharp image and comfortable eye relief.
Usage recommendations
Use the eyepiece on nights of steady seeing for best results at high magnification; allow the telescope to reach thermal equilibrium and avoid excessive atmospheric turbulence. Combine with appropriate barlow lenses or diagonals only if optical compatibility and backfocus permit; using a Barlow will change effective focal length and magnification. For daytime terrestrial viewing where an upright image is necessary, choose an erecting eyepiece or use an image-erecting accessory.

## FAQ

### How much does the Eyepiece Skywatcher SW-5401 10mm cost, and is it available for purchase?

The price is 40.99 € (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 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. All transactions are 100% secure and encrypted.

### 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 Skywatcher 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 Skywatcher 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/11034237/61687781_large.webp