# Barlow lens Tele Vue BLW-3125 3x 1.25-inch for telescopes

**URL:** https://aio.lv/en/product--oem-blw-3125--11023216
**Data updated:** 2026-02-25 16:40 (EET)
**Category:** Telescopes
**Manufacturer:** OEM
**Manufacturer code:** BLW-3125
**EAN:** 0410000032305
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 173.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 143.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-blw-3125--11023216

## 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

Tele Vue BLW-3125 is a 3x Barlow lens with a 1.25-inch barrel designed to increase the effective focal length of compatible telescopes by three times. It fits 1.25" eyepieces, enabling higher magnification for planetary, lunar and double-star observation. Simple to install, it preserves image quality typical of Tele Vue optics and expands viewing flexibility without changing eyepieces.

## Long description

The Tele Vue BLW-3125 3x 1.25-inch Barlow lens is an optical accessory designed to increase the effective focal length of compatible telescopes by a factor of three. It accepts standard 1.25-inch eyepieces and provides higher magnification for detailed observation of the Moon, planets and double stars. The barrel and mechanical fittings are sized for common 1.25-inch eyepiece holders, and the lens preserves the image quality associated with Tele Vue optics while extending the range of usable magnifications without changing eyepieces.
Advantages
This 3x Barlow lens multiplies the telescope's focal length by three while maintaining image sharpness and contrast expected from high-quality optics. Its 1.25-inch interface ensures compatibility with a wide range of eyepieces and accessories. The unit is simple to install and remove, offering quick conversion between native and increased magnification. By using the Barlow, observers can achieve higher power without needing additional eyepieces, reducing cost and setup complexity.
Suitable for
 Planetary and lunar observation where higher magnification is required
 Splitting and observing close double stars
 When a wider range of magnifications is desired without buying extra eyepieces
 Astrophotography setups that accept 1.25-inch accessories and benefit from increased focal length
Key specifications
 Magnification factor: 3×
 Barrel diameter: 1.25 inches (fits standard 1.25" eyepiece holders)
 Optical design: multi-element Barlow optimized for minimal aberration and preserved contrast
 Mechanical fit: compatible with typical 1.25-inch eyepieces and diagonal assemblies
How to use
Insert the Barlow lens into the telescope's 1.25-inch focuser or diagonal, then place a 1.25-inch eyepiece into the Barlow's eyepiece holder and secure it with the thumbscrew. Focus the telescope as usual; the effective focal length will be three times the native focal length when the Barlow is in the optical path. For best results, use eyepieces that perform well at higher magnifications and refocus after inserting the Barlow. Remove the Barlow when lower magnification or a wider field of view is needed.
Usage recommendations
For practical use, pair the 3× Barlow with eyepieces that have good eye relief and quality at higher powers. During nights of poorer seeing, reduce magnification to avoid loss of detail due to atmospheric turbulence. Securely tighten the eyepiece thumbscrew without over-torquing to maintain alignment and avoid stress on the barrel. When used for imaging, confirm backfocus requirements for your camera and adapter to ensure the image plane is reachable.

## FAQ

### How much does the Barlow lens Tele Vue BLW-3125 3x 1.25" cost, and is it available for purchase?

The price is 173.49 € (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 Barlow lens Tele Vue BLW-3125 3x 1.25" 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/11023216/66727641_large.webp