|Filtres | Filtres pour CCD - CCD filters |
DSLR ASTRO-CONVERSION CANON EOS 40D/400D/Xti/450D
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 (please 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 that are comfortable replacing their camera's stock filter.