# Refractor telescope Skywatcher Coma Concealer SW-5407 2 inch accessory

**URL:** https://aio.lv/en/product--skywatcher-sw-5407--11156871
**Data updated:** 2026-03-07 18:16 (EET)
**Category:** Telescopes
**Manufacturer:** Skywatcher
**Manufacturer code:** SW-5407
**EAN:** 5901691603745
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 210.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 174.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--skywatcher-sw-5407--11156871

## 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 Coma Concealer SW-5407 is a 2‑inch optical accessory designed for telescopes to reduce coma and improve star image quality across the field. Installed in the focuser or visual back, it corrects off‑axis aberrations for astrophotography and visual observing, helping deliver sharper stars and more uniform illumination on detectors or eyepieces.

## Long description

The Skywatcher Coma Concealer SW-5407 2 inch accessory is an optical corrector designed to reduce coma in fast refractor and parabolic mirror telescopes. Installed between the focuser and the eyepiece or camera, the coma concealer improves off‑axis star shape and field illumination, producing tighter, rounder stars toward the edge of the field. The unit fits a standard 2‑inch focuser and is intended for visual observing and astrophotography where improved image quality across the field is required.
Advantages
The coma concealer corrects off‑axis aberrations, particularly coma, so stars remain round and sharp from center to edge. It maintains full 2‑inch aperture and field while providing a flat, better‑illuminated image plane for cameras and eyepieces. The accessory is compact, mechanically robust, and simple to install in a 2‑inch focuser or visual back without additional adapters in many setups.
Suitable for
Fast refractor telescopes with noticeable coma
Parabolic mirror telescopes used for wide‑field imaging
Astrophotography with DSLR, mirrorless cameras or dedicated astronomy cameras
Visual observing when improved star shape at the field edge is desired
Key specifications
Connection size: 2 inch optical diameter
Type: coma corrector / field corrector designed for off‑axis aberration reduction
Compatibility: intended for installation in 2‑inch focusers or visual backs
Use cases: visual observation and imaging applications including wide‑field astrophotography
Construction: metal housing for stable mechanical alignment
How to use
Insert the coma concealer into the 2‑inch focuser or visual back and secure it as you would a standard 2‑inch eyepiece or adapter. For visual use, place the eyepiece into the concealer and focus normally; some fine focus adjustment may be required to achieve optimal star shapes at the field edge. For imaging, attach the camera to the concealer using the appropriate T‑ring or camera adapter and adjust backfocus according to the camera‑maker’s specifications. Verify focus across the field and make small position or spacing adjustments between camera and concealer if needed to minimize residual aberrations.
Usage recommendations
Use the coma concealer on telescopes with fast focal ratios where coma is visible. Perform a series of test exposures or visual checks after installation to determine the best spacing for your specific camera or eyepiece. For astrophotography, check illumination and star shape across the sensor and, if possible, take calibration frames under similar conditions to maximize image quality.

## FAQ

### How much does the Skywatcher Coma Concealer SW-5407 2 inch cost, and is it available for purchase?

The price is 210.99 € (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, Installment. All transactions are 100% secure and encrypted.

### Can Skywatcher Coma Concealer SW-5407 2 inch 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/11156871/65906491_large.webp