# Explore Scientific O-III 12nm Nebula Filter 1.25 inch

**URL:** https://aio.lv/en/product--explore-scientific-0310205--10739506
**Data updated:** 2026-07-06 17:43 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** Explore Scientific
**Manufacturer code:** 0310205
**EAN:** 4007922000046
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 88.99 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 73.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--explore-scientific-0310205--10739506

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Explore Scientific O-III 12nm nebula filter is designed for astronomical observations with 1.25-inch eyepieces. By isolating the doubly ionized oxygen emission line, this filter significantly enhances the contrast of planetary nebulae and supernova remnants. It is an essential tool for deep-sky observers looking to improve visibility of faint celestial structures under various sky conditions.

## Long description

The Explore Scientific O-III 12nm Nebula Filter 1.25 inch is a specialized optical accessory engineered to enhance the visual observation of deep-sky objects. By precisely isolating the doubly ionized oxygen emission line at 500.7 nanometers, this filter effectively suppresses light pollution and airglow, allowing faint celestial structures to stand out against the dark background of space. It is designed to fit standard 1.25-inch telescope eyepieces, making it a versatile addition to any amateur astronomer's equipment collection.
Advantages
This filter provides a significant boost in contrast for specific types of deep-sky objects, particularly planetary nebulae and supernova remnants. By blocking unwanted wavelengths of light, it allows the observer to perceive subtle details and structures that would otherwise be washed out by background sky brightness. The 12nm bandwidth is carefully chosen to balance high transmission of the desired oxygen line with effective rejection of light pollution, ensuring a clearer and more detailed view of faint nebulae.
Suitable for
Observing planetary nebulae
Viewing supernova remnants
Deep-sky observation under light-polluted skies
Enhancing contrast for faint emission nebulae
This filter is not suitable for observing galaxies, star clusters, or reflection nebulae, as these objects emit a broad spectrum of light rather than specific emission lines. Using an O-III filter on these objects will significantly dim them and may render them invisible.
Key specifications
Filter type: O-III (Doubly Ionized Oxygen)
Bandwidth: 12nm
Size: 1.25 inch
Compatible with: Standard 1.25-inch telescope eyepieces
To use the Explore Scientific O-III 12nm filter, simply thread it onto the bottom of your 1.25-inch eyepiece barrel. Once securely attached, insert the eyepiece into your telescope's focuser as you normally would. You may need to slightly adjust your focus after installing the filter, as the glass element can cause a minor shift in the focal plane. It is best used with telescopes that have a sufficient aperture to compensate for the light reduction inherent in narrow-band filtering.
What to consider before purchase
Ensure your telescope focuser accepts 1.25-inch accessories
Verify that your target objects are emission nebulae
Consider the aperture of your telescope, as narrow-band filters require sufficient light gathering
For the best results, use this filter with a telescope of at least 6 to 8 inches in aperture to ensure enough light reaches your eye, and observe from a location where the target nebula is high in the sky to minimize atmospheric extinction.

## FAQ

### How much does the Explore Scientific O-III 12nm 1.25 inch Nebula Filter cost, and is it available for purchase?

The price is 88.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 15.07.2026 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 Explore Scientific O-III 12nm 1.25 inch Nebula Filter 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 Explore Scientific 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 Explore Scientific 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/10739506/59891578_large.webp