# Refractor telescope Skywatcher BK 102/500 OTA — 102 mm aperture, 500 mm focal length

**URL:** https://aio.lv/en/product--skywatcher-sw-2001--11370976
**Data updated:** 2026-03-31 13:04 (EEST)
**Category:** Telescopes
**Manufacturer:** Skywatcher
**Manufacturer code:** SW-2001
**EAN:** 5901691603646
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 312.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 258.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--skywatcher-sw-2001--11370976

## 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 BK 102/500 OTA is a 102 mm aperture refractor telescope with a 500 mm focal length (f/4.9) in an OTA (optical tube assembly) format. Designed for wide-field observation of the Moon, planets and bright deep-sky objects, it offers a compact, portable setup suitable for visual observing and basic astrophotography with a compatible mount and camera. Practical for beginners and field use.

## Long description

The Skywatcher BK 102/500 OTA is a refractor telescope optical tube assembly with a 102 mm aperture and a 500 mm focal length (f/4.9). Its compact, lightweight design makes it suitable for field use and portable observing sessions. The fast focal ratio and wide field of view are tuned for visual observation of the Moon, planets and brighter deep-sky objects, and the OTA format allows pairing with a variety of mounts and cameras for basic astrophotography when a compatible mount and accessories are used.
Advantages
The BK 102/500 OTA combines a relatively large 102 mm objective with a short 500 mm focal length to deliver wide-field views with good light gathering for its size. The refractor optical design requires minimal collimation and provides stable, high-contrast images for planetary detail and lunar observing. Its compact tube and modest weight simplify transport, setup and use on smaller mounts. The f/4.9 focal ratio enables shorter exposure times for basic astrophotography when paired with a tracking mount and appropriate camera.
Suitable for
 Visual observation of the Moon and planets
 Wide-field views of bright deep-sky objects such as open clusters and large nebulae
 Portable field observing and outreach events
 Basic astrophotography with a compatible equatorial or tracking mount
Key specifications
 Aperture: 102 mm
 Focal length: 500 mm
 Focal ratio: f/4.9
 Optical type: Refractor (achromatic design)
 Format: OTA (optical tube assembly) — no mount or tripod included
 Recommended use: Visual observing and basic astrophotography with compatible mount
How to use
Attach the OTA to a stable mount compatible with the tube ring or dovetail, balance the assembly and align the mount according to the mount manufacturer’s instructions. Start with low-power eyepieces to locate targets using the wide field of view, then increase magnification for planetary or lunar detail. For astrophotography, secure a camera with the appropriate adapter, ensure accurate polar alignment if using an equatorial mount, and use guiding or short exposures to reduce star trailing. Always allow the instrument to thermally acclimate outdoors for improved image stability.
Usage recommendations
Use this OTA on a stable equatorial or motorized alt-azimuth mount for best results. Pairing with low- to medium-power eyepieces emphasizes the telescope’s wide-field strengths; for photography, select a camera and adapters suited to short focal lengths and consider field flattening or focal reducers if required.

## FAQ

### How much does the Refractor telescope Skywatcher BK 102/500 OTA cost, and is it available for purchase?

The price is 312.49 € (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 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, Installment. All transactions are 100% secure and encrypted.

### Can Refractor telescope Skywatcher BK 102/500 OTA 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 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/11370976/65858405_large.webp