Astronomik H-Alpha 12nm CCD Filter - Canon EOS APS Clip

Brand: Astronomik

SKU : AK-8H00IH

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Product Details

  • The Astronomik H-alpha filter is a narrow band filter for CCD photography. The filter lets the H-alpha light of emission nebulae pass and blocks nearly the whole remainder of the spectrum where the CCD is sensitive.

    This is an EOS APS-C Clip filter.  

    Fits: Astronomik 6nm OIII MFR Narrowband Filter - Canon EOS Clip-fits    Doesn't fit: Astronomik 6nm OIII MFR Narrowband Filter - Canon EOS Clip-doesnt fit

    Compatible Canon EOS Bodies:  7D, 7D MkII,

    20D, 20Da, 30D, 40D, 50D, 60D, 60Da, 70D, 77D, 80D,

    300D/ Digital 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, 100D, and 200D.

     

    The full width at half-maximum (FWHM) of 12nm is optimized for the use with common CCD cameras and allows the use of very fast optics. It should be noted that the filter has a transmission of up to 99-percent. Another advantage of the 12nm filters is the availability of guiding stars for cameras with a built-in-autoguider (SBIG). If you use a very strong filter like our 6nm filter you often won't find a usable guide star.

    The range of application extends from 1:2.8 to 1:15. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios of 1:2 and more come into play.

    The Astronomik H-alpha-CCD (12nm version) increases the contrast between objects, in this case between the H-alpha emission line and the skyglow background. Our Astronomik H-alpha-CCD (12nm version) completely suppresses the emission lines of artificial lighting (mercury (Hg) and sodium (Na)) and skyglow. When using the OIII CCD and the SII-CCD filters you can obtain three-color images of emission line objects (gas nebulae) from locations with very strong light pollution. To do so, you would take an image in three different wavelengths, select each one as a color-channel in Photoshop and paste them together as a color image. The Astronomik H-alpha filter may NOT be used for solar observation. f you plan to create color images from emission line data, our CLS-CCD filter is a great choice for the Luminance channel.

    About the Astronomik Clip-Filter System: The patented Astronomik Clip-Filter System is black anodized aluminum and laser-cut on state-of-the-art modern machines. It can be inserted within seconds directly into the EOS camera body. There are no changes necessary and all lens functions (focus, screen, image stabilization) remain functional!

    Almost all Canon system lenses (with the exception of the EF-S series) and all M42 and T2 lens adapters, can be used with the Astronomik Clip-Filter System. The Clip-Filter System also acts as an outstanding dust shield, which prevents the possibility of dust settling on the sensor during long time exposure (The MC-Clear filter does not have a filter effect and only acts as a dust shield.)

    Note: For Photographers interested in daylight IR-Photography an "MC-modification" is possible for some cameras. If you are interested in this, please send us a short mail. We will give you more details. The "MC-modification" gives you no advantage for normal astrophotography! If you have a full-frame EOS camera, like the 5D or 6D, you should buy the Astronomik H-alpha 12nm XL EOS Clip Filter instead. 

    Astronomik H-alpha 12nm CCD Filter - Canon EOS Clip Features:

    • Transmission of over 97-percent with the H-alpha line (656nm)
    • Complete blocking from all disturbing wavelengths in the infrared
    • Parfocal with other Astronomik filters
    • Glass thickness: 1mm
    • Completely resistant to high humidity, scratches, and aging effects
    • Diffraction limited, the filter will not reduce the optical performance of your telescope!
    • Astronomik filters are delivered in a high-quality, long-lasting, filter box 
  • specifications

    Filter TypeH Alpha
    Free ShippingYes
    ShapeCanon APS C
    Warranty10 Year Warranty
  • included items

OPT Product Number: AK-HA12-EOS

  • Astronomik H-alpha 12nm CCD Filter - Canon EOS APS Clip

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