# O-III 6.5nm 1.25" Nebula Filter by Explore Scientific

**URL:** https://aio.lv/en/product--oem-0310105--11022969
**Data updated:** 2026-03-20 09:47 (EET)
**Category:** Telescopes
**Manufacturer:** OEM
**Manufacturer code:** 0310105
**EAN:** 4007922072661
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 160.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 132.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--oem-0310105--11022969

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Explore Scientific O-III 6.5nm 1.25" nebula filter isolates doubly ionized oxygen emission lines to enhance contrast in planetary nebulae and emission nebulae. Designed for 1.25" eyepieces, the 6.5nm bandwidth reduces skyglow and improves visibility of faint O‑III features, making visual observing and astrophotography more effective under light-polluted and dark skies.

## Long description

The Explore Scientific O-III 6.5nm 1.25" Nebula Filter isolates the doubly ionized oxygen emission lines (O‑III) to increase contrast and detail in planetary and emission nebulae. Engineered for 1.25" eyepieces, this narrowband filter has a 6.5nm full width at half maximum (FWHM) that suppresses broadband skyglow while transmitting the key O‑III wavelengths. It is suitable for both visual observing and imaging with telescopes where improved nebular contrast is required under a variety of sky conditions.
Advantages
The 6.5nm bandwidth provides selective transmission of O‑III emission while rejecting much of the background light pollution and moonlight, improving perceived contrast. Designed for 1.25" focusers and eyepieces, the filter is compact and easy to insert into standard visual paths. Its narrow spectral profile makes it effective for revealing faint O‑III structures in planetary nebulae and many emission nebulae, enhancing both visual detail and the signal-to-noise ratio in long-exposure and short-exposure astrophotography.
Suitable for
Visual observation of planetary nebulae and emission nebulae
Astrophotography targeting O‑III emission lines
Use with 1.25" eyepieces, filter wheels, and visual adapters
Observing from light-polluted suburban skies and darker sites
Key specifications
Type: Narrowband O‑III nebula filter
Effective bandwidth: 6.5 nm (FWHM)
Size: 1.25" (standard visual filter diameter)
Transmission: High at O‑III emission wavelengths, strong out-of-band rejection
Application: Visual observing and astrophotography for O‑III emitting objects
How to use
Insert the filter into a 1.25" eyepiece barrel, visual back, or filter wheel tightened according to the accessory instructions. For visual use, allow a few minutes for your eye to adapt to the contrast changes introduced by the narrowband filter. For imaging, place the filter in the imaging train ahead of the camera sensor and verify focus, as narrowband filters can shift focus slightly; apply standard calibration frames and exposure settings appropriate for faint nebular emission. When switching between targets or between visual and imaging modes, handle the filter by the edges to avoid fingerprints on the optical surface.
Usage recommendations
Best results are obtained on targets with strong O‑III emission such as many planetary nebulae and portions of emission nebulae. In light-polluted areas the filter will increase contrast noticeably, while in very dark skies it helps reveal faint O‑III structures. Combine with a UHC or H‑alpha filter only in multi-filter imaging workflows where separate narrowband channels are captured; do not stack incompatible filters in the visual path.

## FAQ

### How much does the O-III 6.5nm 1.25" Filter — Explore Scientific cost, and is it available for purchase?

The price is 160.49 € (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 02.07.2026 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 O-III 6.5nm 1.25" Filter — Explore Scientific 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/11022969/65906432_large.webp