Baader Planetarium 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter for Telescopes

SKU: AABDSF140 MFR: BDSF-140
$148.00
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Key Features

  • Capture stunning solar details using this 140mm white-light digital solar filter.
  • Enjoy high transmission rate for brighter, clearer views of sunspots & solar flares.
  • Reduce light pollution and enhance image clarity with this premium telescope filter.
  • Durable build ensures long-lasting performance for all your solar observation needs.
  • Achieve exceptional image clarity with this easy-to-install Baader Planetarium filter.
  • Features a secure fit with included safety straps, compatible with various telescopes.
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Baader Planetarium BDSF-140 Specifications

  • Bandpass

    White-light, broadband

  • Clear Aperture

    140mm

  • Diameter

    230mm (9.2")

  • Weight

    6.1 oz (173g)

  • UPC Code

    4047825103451

About Baader Planetarium BDSF-140

Make your solar imaging experience unparalleled with the Baader 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter, specifically designed for telescopes. This advanced filter is the result of innovative developments following the release of the Baader Solar Filters OD 5.0 in spring 2015. It shares the same robust cell and mechanical specifications as the ASTF-Filter with Safety Film OD 5.0, but with a crucial difference: the inclusion of the AstroSolar PHOTO Film OD 3.8.

The AstroSolar PHOTO Film OD 3.8 is a time-tested medium that significantly reduces exposure times, making it ideal for digital videography and the lucky imaging technique. By enabling such short exposure times, it effectively "freezes" atmospheric turbulences, providing you with crisp and clear images of solar phenomena. It's important to note that this filter is designed exclusively for digital imaging and is not suitable for direct solar observation.

Unlike many ready-made filters that compromise image quality by stretching the material taut, the AstroSolar PHOTO Film OD 3.8 is meticulously mounted to remain entirely stress-free. This ensures that it performs like a high-precision plane optical window, maintaining its superior image quality even at high magnifications. The slight ripples in the AstroSolar film are a hallmark of its quality, indicating that it has not been subjected to damaging stress.

The Baader ASTF/BDSF (AstroSolar Telescope Filter) series represents the pinnacle of solar filter technology. To prevent any stress on the AstroSolar material, the filter features a temperature-compensated cell. The film is securely cemented onto an injection-molded ring that matches the thermal expansion of the AstroSolar filter material, ensuring optimal performance across a wide temperature range, from -30°C to +50°C. This free-floating film-carrier ring is then secured to the aluminum frame with a fiber-reinforced plastic holding ring, providing maximum security against breakage.

Invest in the Baader 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter to capture the sun's most dynamic moments with your telescope, ensuring that every image is a testament to the wonders of our closest star.

Baader Planetarium BDSF-140 Features

  • Advanced 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter designed specifically for telescopes
  • Incorporates AstroSolar PHOTO Film OD 3.8 for reduced exposure times and clear solar imaging
  • Designed for stress-free mounting to maintain high image quality even at high magnifications
  • Part of the high-end Baader ASTF/BDSF (AstroSolar Telescope Filter) series for superior solar imaging
  • Features a temperature-compensated cell for optimal performance across a wide temperature range
  • Securely constructed with a fiber-reinforced plastic holding ring for maximum protection against breakage

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Key Features

  • Capture stunning solar details using this 140mm white-light digital solar filter.
  • Enjoy high transmission rate for brighter, clearer views of sunspots & solar flares.
  • Reduce light pollution and enhance image clarity with this premium telescope filter.
  • Durable build ensures long-lasting performance for all your solar observation needs.
  • Achieve exceptional image clarity with this easy-to-install Baader Planetarium filter.
  • Features a secure fit with included safety straps, compatible with various telescopes.

What's in the box:

  • Baader Planetarium 140mm AstroSolar BDSF 3.8 White-Light Digital Solar Filter
  • 3x Screws
  • 3x Washers
  • 3x Centering Bolts
  • 3x Rubber Plugs
  • 3x Safety Straps with Adhesive Pads
  • Baader Planetarium 2 Year Limited Warranty