Astronomik H-Alpha 6nm CCD Filter - Canon EOS Clip

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Astronomik H-Alpha 6nm CCD Filter - Canon EOS Clip
$289.95
Item # AK-HA6-EOS
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  • Wow, an Astronomik H-Alpha 6nm CCD Filter for your Canon EOS camera that clips in above the mirror! All normal functions of your EOS camera will be unaffected... focus, image stabilization, etc.
  • The Astronomik 6nm CCD H-Alpha Filter is a Canon EOS Clip format and is designed to fit most Canon EOS Cameras.
  • The 6nm narrow bandpass H-alpha filter has a transmission of 85% - 90%.
  • Parfocal with other Astronomik filters, the Astronomik 6nm CCD H-Alpha Filter is great for imaging supernova remnants and planetary nebulae.
  • Design of the transmission curve makes it possible to use the filter with instruments from 1:3.75 to 1:15.
  • The Astronomik 6nm H-Alpha Filter may NOT be used for solar observation.
Description

Details

Astronomik H-Alpha 6nm CCD Filter - Canon EOS Clip


The Astronomik 6nm H-alpha filter is an extremely narrow emission-line 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. The full width at half-maximum (FWHM) of 6nm is optimized for a maximum contrast between the (H-alpha emitting) object and the background. The contrast gain is much higher than with our 12nm emission line filters but you won’t see as much stars in the resulting images. The design of the transmission curve makes it possible to use the filters with instruments from 1:3.75 to 1:15.

The Astronomik H-alpha-CCD (6nm version) increases the contrast between objects, in this case between the H-alpha emission line and the skyglow background in the same way as the 12nm version. The gain in contrast is much higher due to the smaller FWHM. The 6nm H-Alpha filter is the right choice for extremely dim objects, even in the milky way, and for observations from heavily light-polluted places. The Astronomik 6nm H-alpha-CCD completely suppresses the emission lines of artificial lighting (mercury (Hg) and sodium (Na)) and skyglow. Transmission losses and chromatic distortions, which arise with other filters, only occur with Astronomik filters when extremely bright aperture ratios come into play.

Using the Astronomik 6nm H-Alpha together with the 12nm H-Alpha gives you the ability to have a maximum contrast in the HII objects and to keep the stars in the final image. The Astronomik 6nm H-Alpha filter may NOT be used for solar observation. If you plan to do (false-)color imaging with other emission line filters, you should get the matching filters with 12nm FWHM. Images taken with filters with differing FWHM are very difficult to combine into the final image.

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 a "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! The Astronomik Canon EOS clip is not suitable are cameras offered before 2003 and all varieties of the Canon EOS 1D and Canon EOS 5D.

Astronomik H-Alpha 6nm CCD Filter - Canon EOS Clip Features


  • Parfocal with other Astronomik filters
  • Glass thickness: 1mm
  • Completely resistant against 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


Astronomik Product Number: HA6-EOS
Additional Information

Additional Information

SKU AK-HA6-EOS
Manufacturer Astronomik
Type of Filter H-Alpha
Filter Usage Imaging
Single or Set? Single Filter
Filter Size EOS Clip
Filter Shape EOS Clip
Filter Mounted? Mounted
Warranty 10 Year Warranty
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Included Items

Included Items

  • Astronomik 6nm H-Alpha CCD Filter in Canon EOS Clip format
  • Protective Plastic Case
Questions & Answers

Product Questions

Hi, with my Modified Canon T5i... What narrowband filters must be the choices, 12NM or 6NM ? I got a C11 Edge HD.
The three clip filters must be the same? (ie 12 NM all / or 6NM all??) Or can i use combinations (12Nm + 6NM)... Thanks in advance!!
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