USED ASTRONOMIK Ha 12nm XL CLIP FILTER - UT-14236

ITEM #
UT-14236
  • This is a used filter in excellent condition
  • Sale
  • Regular price $329.00
  • $249.00
  • You save: $80.00 (24%)

One Left in Stock
Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

OPT Telescope Expert

Want Help?

Ask Our Telescope Experts

1.800.483.6287

USED ASTRONOMIK Ha 12nm XL CLIP FILTER - UT-14236



An H-alpha 12 nm CCD Filter in a Full Frame XL Clip for Canon EOS Cameras by Astronomik:

This is EOX XL Clip for Canon Full Frame cameras.

It fits: Astronomik 12nm H-Beta CCD Filter - Canon EOS Full Frame Clip-fits It doesn't fit: Astronomik 12nm H-Beta CCD Filter - Canon EOS Full Frame Clip-doesnt fit

It is compatible with these cameras: EOS 6D, EOS 5D (no live view), EOS 5DMk II, and EOS 5D Mk III.

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. 

The full width at half-maximum (FWHM) of 12 nm 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 12 nm filters is the availability of guiding stars for cameras with a built-in-autoguider (SBIG). If you use a very strong filter like our 6 nm 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 (12 nm version) increases the contrast between objects, in this case between the H-alpha emission line and the skyglow background. Our Astronomik H-alpha-CCD (12 nm 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.

Note: The Astronomik H-alpha filter may NOT be used for solar observation. If 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 XL Clip-Filter System: The patented Astronomik Clip-Filter System for Canon full-frame cameras is black anodized aluminum and laser-cut on state-of-the-art modern machines. It can be inserted within seconds directly into any full-frame (5D and 6D, for example) EOS camera body. There are no changes necessary and all lens functions (focus, screen, image stabilization) remain functional! If you have a EOS Rebel, or other Canon APS-C sized camera body, you should purchase the standard-sized Astronomik H-alpha 12 nm EOS Clip filter instead.

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.)

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

  • Transmission of over 97-percent with the H-alpha line (656 nm)
  • Complete blocking from all disturbing wavelengths in the infrared
  • Parfocal with other Astronomik filters
  • Glass thickness: 1 mm
  • 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 

SPECIFICATIONS

ConditionExcellent
Warranty90 Day Covered By OPT

INCLUDED ITEMS

  • Astronomik Ha 12nm XL clip filter*
  • Plastic case
  • * Does not fit 6D Mk-II *