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Baader BCF DSLR Astro Conversion Filter - for Canon EOS
Baader BCF DSLR Astro Conversion Filter - for Canon EOS

Baader BCF DSLR Astro Conversion Filter - for Canon EOS

by Baader Planetarium
SKU BAA-2459213
CA$114.00 - CA$114.00
CA$114.00
CA$114.00 - CA$114.00
CA$114.00
Price Match Policy!
  • Replaces stock DSLR filter to dramatically increase H-alpha sensitivity
  • Enables detailed imaging of emission nebulae
  • Designed for a wide range of Canon EOS APS-C cameras
  • Maintains correct focus with standard camera lenses
  • A permanent modification for dedicated astrophotography use
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  • Description
  • FAQ
  • Specifications
  • In the Box
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  • Warranty

  • Baader BCF DSLR Astro Conversion Filter - for Canon EOS

    The Baader BCF DSLR Astro Conversion Filter replaces the stock IR-cut filter in Canon EOS models like the 7D, 40D, and 50D, dramatically increasing their sensitivity to the critical Hydrogen-alpha wavelength. This modification is essential for capturing the faint, red structures in emission nebulae like the North American Nebula (NGC 7000) that a standard DSLR sensor cannot record. It transforms compatible cameras, including the 60D, 600D, and 1100D, into capable deep-sky imaging instruments.

    Unlocking Hydrogen-Alpha for Deep-Sky Imaging

    A standard DSLR camera is engineered for daytime photography, which requires filtering out the infrared and ultraviolet light that human eyes don't see. Unfortunately, this stock filter also blocks most of the deep-red Hydrogen-alpha light that is the primary emission from the most iconic nebulae. The Baader BCF is specifically designed to replace this restrictive filter, opening a new window for your camera's sensor.

    By installing the BCF, you allow this crucial wavelength to reach the sensor, revealing the intricate details, faint extensions, and true color of targets like the Orion Nebula (M42) and the Lagoon Nebula (M8). This is not a subtle change; it is the fundamental step in converting a consumer camera into a serious astrophotography tool.

    Compatibility for Canon EOS 7D, 40D, 50D, 60D, and More

    This Baader BCF filter is engineered for a precise fit within the sensor assemblies of a wide range of popular Canon EOS DSLR bodies. It is a direct replacement for the original filter, ensuring that autofocus and infinity focus with standard camera lenses are maintained after the conversion.

    • Supported Models: Canon EOS 7D, 40D, 50D, 60D, 400D, 450D, 500D, 550D, 600D, 650D, 1000D, and 1100D.
    • Installation Note: Replacing the internal filter is a delicate, irreversible process that requires disassembling the camera body. This modification should only be undertaken if you are comfortable with intricate electronics work or by a professional service.

    The Astro-Conversion Advantage: Baader BCF vs. a Stock DSLR Filter

    The difference between an image taken with a stock DSLR and one with a Baader BCF-modified camera is night and day, especially on emission nebulae. A stock camera will struggle to record anything more than the brightest core of a nebula, often with weak, muddy colors. The modified camera captures the full extent of the object's glowing hydrogen gas.

    While a dedicated astronomy camera offers cooling and monochrome capabilities, a modified DSLR is a powerful and cost-effective entry into serious deep-sky imaging. The Baader BCF provides the most critical part of that conversion: enhanced red sensitivity. After modification, your camera will still function for daytime use, but will require a custom white balance to correct the color cast.

  • What is the main benefit of installing the Baader BCF in my Canon EOS camera?

    The primary benefit is a massive increase in sensitivity to the Hydrogen-alpha wavelength. This allows your Canon DSLR to capture the faint, red light from emission nebulae, which is almost completely blocked by the camera's stock filter, transforming it into a powerful tool for deep-sky astrophotography.

    Will the Baader BCF filter allow my Canon 60D to photograph the Orion Nebula (M42) better?

    Absolutely. The Orion Nebula (M42) is rich in Hydrogen-alpha emissions. A standard Canon 60D will only capture the bright, central Trapezium region well, while the extensive outer loops of gas will appear faint and lack detail. With the Baader BCF installed, your 60D will record the full, vibrant red structure of the entire nebula complex.

    After installing the Baader BCF filter, can I still use my Canon 450D for normal daytime photography?

    Yes, but with a critical adjustment. After the conversion, daytime images will have a strong red color cast. To correct this, you must shoot using a custom white balance setting. By taking a reference photo of a neutral gray or white card, you can create a white balance profile that produces natural-looking colors for terrestrial subjects.

    Is the Baader BCF filter installation reversible?

    While technically possible, the process is not considered easily reversible. It involves delicate disassembly of the camera and sensor assembly. It is best to consider this a permanent modification dedicated to converting the camera for astrophotography.

    Which Canon EOS models is the Baader BCF filter compatible with?

    The Baader BCF is designed for a range of Canon APS-C sensor DSLRs. Compatible models include the Canon EOS 7D, 40D, 50D, 60D, 400D, 450D, 500D, 550D, 600D, 650D, 1000D, and 1100D.

    How does a Baader BCF-modified Canon 7D compare to a dedicated astronomy camera for imaging the Heart Nebula (IC 1805)?

    A Baader BCF-modified Canon 7D will dramatically outperform a stock DSLR on the Heart Nebula (IC 1805), capturing its extensive H-alpha structures. However, a dedicated astronomy camera typically offers sensor cooling to reduce thermal noise during long exposures, which will result in a cleaner final image with better signal-to-noise ratio. The modified DSLR is a fantastic, cost-effective step up, while a cooled astro camera is the next level for ultimate image quality.

  • Filter size other
    Filter shape rectangular
    Single or Set? Single Filter
    Filter mounted Unmounted
    Filter Usage Color Correction, H-alpha, IR-Cut, UV-Cut
    Transmission Range 400 – 700 nm
    AR-Coating dielectrically coated, planeoptically polished
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