Baader Planetarium DSLR Astro-conversion filter for Canon EOS 400D and 40D cameras.
Improved light transmission of red to capture the faint H-alpha light from emission nebulae.
DSLR Correcting Filters for Canon EOS cameras. Turn your Canon DSLR into a superb deep sky AstroCamera. Baader's new DSLR correcting filters replace the factory correcting filter ("hot mirror"). The special substrate is coated with Baader's renowned UV-IR-Cut coatings. Imagers can now gain all the advantages of Baader's UV/IR Cut filters, giving full efficiency at H-Alpha wavelengths, and at full resolution (the Baader filter eliminates the Canon factory moire filter, which reduces resolution on astronomical subjects). The thickness of the Baader DSLR filters have been designed to maintain the correct factory focal point (pleae note: The Baader filter is intentionally of a different thickness than the factory filter - this is required to match the effective index of refraction of the factory "sandwich" filter).
This filter is intended for amateurs who are comfortable replacing their camera's stock filter. Please Note: For best performance it is recommended installing the filter with the coated (pinkish) side facing out. The digital astro eGroup is a great place for advice on how to replace this filter. Here are links to some very helpfull filter replacement websites:
Note: Baader Planetarium and Eridanus Optics CC do not take any responsibility for damage to your camera due to this conversion. The information is provided in good faith. You will loose any manufacturer's warranty on the camera if you attempt to modify it.
If you are not up to this challenge, keep an eye on this page as Eridanus Optics are currently negotiating a deal with the Canon technical repair store!
Please enquire when stock is indicated as zero. Availability is typically within 2 months - please enquire.
This product was added to our catalog on Sunday 03 August, 2008.