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header-product Beta Baader ND 3.8 Solar Filter 20x29cm
38.99 €
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AiO.lv Household Products Hobbies and creativity Telescopes Beta

Beta Baader ND 3.8 Solar Filter 20x29cm

Beta Baader ND 3.8 Solar Filter 20x29cm Photo 1
Beta Baader ND 3.8 Solar Filter 20x29cm Photo 1
Beta Baader ND 3.8 Solar Filter 20x29cm
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Short description

Beta Baader ND 3.8 Solar Filter measuring 20x29cm, designed for safe solar observation and astrophotography. This neutral density filter reduces sunlight intensity to optimal levels for specialized imaging equipment. Essential accessory for astronomers seeking reliable performance during solar events.
Available for order: 6 pcs.
Warranty: 2 Years
SKU: 11202260
Manufacturer: Beta
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Cost

1.99 €

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2b. Kengaraga str., Riga, Latvia, LV-1063
22.09.2026 {{selectedOffer.officeDeliveryString}}
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25.09.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
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Product information

Description

The Beta Baader ND 3.8 Solar Filter 20x29cm is an essential accessory designed for safe solar observation and astrophotography. Measuring 20x29cm, this neutral density filter effectively reduces sunlight intensity to optimal levels specifically for specialized imaging equipment. It provides reliable performance for astronomers during various solar events.

Advantages

This solar filter offers precise neutral density attenuation tailored specifically for imaging gear, ensuring that light transmission is controlled accurately. The generous 20x29cm size provides flexibility for custom setups and installations. Manufactured to high optical standards, it supports high-contrast capture of solar details without introducing unwanted optical distortions, making it a dependable choice for dedicated astrophotographers.

Suitable for

  • Specialized solar astrophotography with digital cameras or dedicated planetary cameras
  • Custom filter cell construction for various telescope apertures and telephoto lenses
  • Capturing high-resolution images of solar surface features and sunspots

When it may not be suitable

This filter is strictly designed for photographic and imaging purposes with specialized equipment and is not suitable for visual observation through eyepieces, as the transmission level is too high for the naked eye. It should also be avoided by users who require a pre-mounted visual filter rather than a sheet format that demands custom adaptation.

Key specifications

  • Filter type: Neutral Density (ND 3.8) Solar Filter
  • Dimensions: 20x29cm
  • Application: Solar astrophotography and specialized imaging

How to use

Before use, inspect the filter sheet carefully for any pinholes, scratches, or damage. Construct a secure, custom-fit mounting cell to attach the filter material firmly over the front aperture of your telescope or camera lens, ensuring it cannot be dislodged by wind or accidental contact. Always ensure the filter is positioned securely before directing any optical equipment toward the sun.

What to consider before purchase

  • Verify that your intended application is strictly photographic, as ND 3.8 is not rated for visual use
  • Ensure you have the technical capability and materials required to build a safe, secure mounting cell for the 20x29cm sheet
  • Confirm the dimensions match or exceed the clear aperture of your optical instrument

Always double-check the secure attachment of the filter cell before every observation session and never attempt visual viewing through an ND 3.8 filter.

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Product comparison

Comparing Beta Baader ND 3.8 Solar Filter 20x29cm with the alternative Solar Continuum Filter Baader 7.5 nm 2" highlights key differences in their format, design, and practical application for solar observation. Both products serve solar astronomy purposes, but the first is a sheet-format neutral density filter designed for custom fitting and specialized solar imaging by reducing light intensity to an ND 3.8 level. The second is a narrow-band 2-inch format filter designed to be mounted into focusers or eyepiece holders to isolate the solar continuum for enhanced contrast in visual observing and imaging.

⚙️ The specification comparison table below outlines the core characteristics and practical implications of these differences.

Comparison parameterBeta Baader ND 3.8 Solar Filter 20x29cmSolar Continuum Filter Baader 7.5 nm 2"Practical significance
Product typeSheet-format neutral density solar filterNarrowband filter in 2-inch formatDetermines whether the filter must be custom-mounted or directly inserted into standard optical paths.
Size and format20x29 cm filter sheet2-inch threaded filterThe sheet format allows custom cutting for various apertures, whereas the 2" model fits standard eyepiece holders.
Core functionReduces sunlight intensity for specialized imaging (ND 3.8)Isolates solar continuum for photospheric detail (7.5 nm)ND 3.8 is optimized for camera imaging light levels, while Solar Continuum enhances visual and photographic contrast of sunspots.

◎ The suitability table below evaluates usage scenarios to help determine which product aligns best with specific observational needs.

Use caseRecommended productWhy
Creating custom-sized filters for unique apertures or camera setupsBeta Baader ND 3.8 Solar Filter 20x29cmThe large sheet area provides the flexibility to cut and fit custom cells for various instruments.
Enhancing contrast of sunspots and granulation using standard focusersSolar Continuum Filter Baader 7.5 nm 2"The narrow 7.5 nm bandwidth effectively isolates wavelengths that reveal fine photospheric structures.

The right choice depends on your setup and observational goals: choose Beta Baader ND 3.8 Solar Filter 20x29cm if you need a flexible sheet solution for custom-built solar imaging setups, or opt for Solar Continuum Filter Baader 7.5 nm 2" if you require a drop-in 2-inch filter to maximize contrast and reveal fine details in sunspots and granulation.

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Customer questions

FAQ

How much does the Beta Baader ND 3.8 Solar Filter 20x29cm cost, and is it available for purchase?

The price is 38.99 € (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 22.09.2026 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. All transactions are 100% secure and encrypted.

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 Beta 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 Beta 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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