# Focal length reducer Skywatcher ED120 0.85× for ED120 refractor

**URL:** https://aio.lv/en/product--skywatcher-sw-5412--11370917
**Data updated:** 2026-03-31 13:04 (EEST)
**Category:** Telescopes
**Manufacturer:** Skywatcher
**Manufacturer code:** SW-5412
**EAN:** 5901691601963
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 278.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 230.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--skywatcher-sw-5412--11370917

## 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

Focal length reducer Skywatcher ED120 0.85× designed for use with the ED120 refractor. This optical accessory reduces the telescope's effective focal length by 15%, providing a wider field of view and shorter focal ratio for astrophotography and visual observation. Compatible with the ED120 optical tube to help capture larger sky areas and improve framing for deep-sky targets.

## Long description

The Skywatcher ED120 0.85× focal length reducer is an optical accessory engineered for the ED120 refractor. It reduces the telescope's effective focal length by 15%, producing a wider field of view and a faster focal ratio that are useful for both astrophotography and visual observation. The reducer is intended to work with the ED120 optical tube to improve framing of extended deep-sky objects and to shorten exposure times when imaging.
Advantages
The focal length reducer provides a consistent 0.85× reduction, delivering a noticeably wider image circle while preserving the ED-corrected optical performance of the refractor. By lowering the effective focal ratio, it allows shorter exposure times for imaging and easier acquisition of larger targets without changing the main optical tube. The design keeps optical alignment simple and maintains good edge-to-edge performance when used within the compatible backfocus range.
Suitable for
 Wide-field astrophotography of deep-sky objects (nebulae, star clusters, galaxies)
 Visual observing when a broader field of view is required
 Reducing overall focal ratio for faster imaging with smaller sensors
 Improving framing and composition of extended targets
Key specifications
 Reduction factor: 0.85× (15% shorter focal length)
 Compatible optical type: designed for ED120 refractor tubes
 Effect on focal ratio: yields a faster focal ratio proportional to 0.85×
 Primary use: astrophotography and visual wide-field observation
 Optical performance: maintains ED-corrected imaging characteristics when used at specified backfocus
How to use
Attach the reducer between the ED120 telescope's focuser and the camera or visual diagonal following the manufacturer's recommended mechanical spacing (backfocus). Confirm the correct spacing to ensure the optical train reaches the specified focus and to preserve edge performance. Once installed, re-collimate if necessary, then focus and frame the target. For imaging, check focus across the field and make small adjustments to the camera spacing if field correction requires it.
Usage recommendations
Use the focal reducer together with the ED120 refractor at the recommended backfocus distance and pair it with suitably sized imaging sensors to take full advantage of the widened field. For best results in astrophotography, verify focus and field flatness with test exposures, and consider subframe calibration (dark, flat, bias) appropriate to your setup.

## FAQ

### How much does the Focal length reducer Skywatcher ED120 0.85× cost, and is it available for purchase?

The price is 278.49 € (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 Focal length reducer Skywatcher ED120 0.85× 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/11370917/65858346_large.webp