Astronomik H-alpha 6 nm CCD XT Clip-Filter for Canon EOS (APS-C) Cameras - Extra Thin
Astronomik 6 nm H-Alpha CCD XT Clip-Filter
for Canon EOS APS-C Cameras
The Astronomik "XT" designation stands for Extra Thin. At just 0.3 mm compared to their standard 1 mm filters (2 mm total thickness), the XT series is designed to give even greater image clarity. This is particularly useful for wide field imaging, minimizing vignetting over their 1 mm filters. See a comparison of the 0.33 mm XT and the standard 1 mm filters in the "Product Attachments" section below.
The 6 nm H-Alpha CCD XT clip-filter for Canon EOS APS-C cameras allows for improved gains in contrast and long exposures for astrophotography (this filter is not designed for solar observing or daytime photography). While DSLR's are less sensitive to the H-Alpha (656 nm) wavelength than CCD cameras made explicitly for astrophotography, this Astronomik filter will improve your Canon EOS's performance at this wavelength, even without modification of the camera's built-in IR-block filter. In addition, this 6 nm H-Alpha CCD XT clip-filter provides improved performance without affecting other camera functionalities, such as infinity focus, autofocus, exposure measurement, or image stabilization!
The innovative and patented Astronomik clip-filter system makes this filter type particularly suitable for telescopes with low focal ratios, or in setups where filter drawers or wheels are not ideal (as when they would impact corrector lenses). Additionally, these filters act as dust covers, protecting the camera's sensor chip over long exposures.
Important: This H-Alpha filter is NOT suitable for solar observing! Only use proper solar filters to look at the sun. Without proper filters, blindness or severe eye damage may result.
About the Astronomik Clip-Filter System
The Astronomik innovative clip-filter system allows a variety of filter types to be attached to your camera without the need for tools or other modifications. In addition, using these filters does not interfere with other functionalities of your camera such as infinity focus, autofocus, exposure measurement, and image stabilization control. Simply clip the filter into the base of the camera, between the mirror and lens, and reattach the lens. The Astronomik clip-filter system is compatible with all lens types except Canon EF-S lenses.
Made in Germany, this extra thin (XT) filter is only 0.3 mm thick with laser-cut lenses and black anodized aluminum frames.
Astronomik 6 nm H-Alpha CCD XT Clip Filter Compatibility
Note: Not suitable for cameras manufactured before 2003 and all varieties of the Canon EOS 1D and EOS M. Not compatible with Canon EF-S lenses.
The following Canon EOS models are suitable for Astronomik clip-in filters: 7D, 7D MkII, 20D, 20Da, 30D, 40D, 50D, 60D, 60Da, 70D, 77D, 80D, 90D, 100D, 200D, 300D/Digitial Rebel/Kiss Digital, 350D/Digital Rebel XT/Kiss Digital N, 400D/Digital Rebel XTi/Kiss Digital X, 450D/Rebel XSi/Kiss X2, 500D/Rebel T1i/Kiss X3, 550D/Rebel T2i/Kiss X4, 600D/Rebel T3i/Kiss X5, 650D/Rebel T4i/Kiss X6, 700D/Rebel T5i/Kiss X7, 750D/Rebel T6i/Kiss X8, 760D/Rebel T7i/Kiss X9, 800D, 1000D/Rebel XS/Kiss F, 1100D/Rebel T3/Kiss X50, 1200D, 1300D, 2000D, 4000D.