Astronomik H-alpha (12nm) CCD Filter (31mm with frame)

incl. 27% VAT

161.43
Including 27% VAT:
161.43 € (56 500 HUF)
Net price (for non-EU customers):
127.11 € (44 488 HUF)
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Product code: AsH12CCD31

Astronomik H-alpha (12nm) CCD Filter (31mm with frame)

More about the product

These filters are made in a completely new construction, which makes the best Out-of-Band blocking possible across the whole range of wavelengths from the UV up to IR! Your advantage of our new design is a extremly high contrast, minimized stray light, no halos and needle-sharp stars. With the new Astronomik MFR Narrowband-Emissionline filters you get data with the best quality possible: The best starting material to be processed to a awesome final image!
To get the maximum from the valuable observation time you need filters with the highest transmission possible. We do guarantee a transmission of 90%, but typically the transmission is as high as 96% . -These values are valid for the 12nm and the 6nm filters as well!
For maximum contrast the SII filter is carefully designed to block all light coming from H-alpha and NII (nitrogen).

Due to the new MFR coating the new Astronomik Narrowband filters can be used at nearly all instruments and safe you money:
Contrary to filters from other manufacturers the transmission curve of the new Astronomik Narrowband-Emissionline filters is nearly not shifted when used with fast optical systems! While other manufactures sell special "High Speed" filters or you even have to buy a new filter for each scope, this is not the case with the new Astronomik Narrowband-Emissionline filters with MFR coating. Save lot´s of money as you may use all filters with 12nm Bandwith (FWHM) with any instrument up to f/3 and all 6nm filters up to f/4!

Imaging with Narrowband-Emissionline Filters
If you have to observe from light polluted sites (like most of us...), imaging with Narrowband-Emissionline filters is the best way to take great images, as all kind of light pollution can be blocked very effective! Normaly an H-alpha filter should be your first step into this amazing field of astrophotography! With an Narrowband H-alpha filter you will be able to take deep and contrasty images even wih very heavy light pollution or with the full moon high up in the sky!
If you look at other astrophotos, an H-alpha is the best choice for all nebulas glowing red! An OIII filters expands your imaging possibilities, as you are able to image all greenish/blueish structures. Planetary nebulas and star forming regions are great targets! The SII filters completes your HSO-set of filters. With these three filters you are able to process your images like the ones from the Hubble space telescope!
The h-beta filter is not available in a 6nm version, as this filter has nearly no meaningfull application. To illustrate this, there are two images shown below: Both were taken with a unmodified Canon 650D. Even as the camera has a sensitivity of less than 10% at H-alpha, there is some signal und structure in the h-alpha image, while you cannot see anything on the image taken with an H-beta filter!

Quality aspects of the new Astronomik MFR Narrowband-Emissionline Filters:

  • MFR Coating: The 12nm Filters can be used on all instruments up to f/3, the 6nm filters up to f/4. (Filters for faster optics are available upon request.)
  • High-Quality substrate: Astronomik filters are made with stress- and striae free, opticaly polished glass. The filter itself is made of ultra thin layers on this substrate!
  • Parfocal filters: All Astronomik Filters are parfokal! Due to the very small thickness-tolerance the focal plane is not shifted when changing filters! We have supplied parfocal filters for optical system as fast as f/1!
  • Coating: Astronomik filters are made of up to 130 layers which are coated on both sides of the substrate. These layers form the filter itself and act as a Anti-Reflection Coating.
  • Durability: Due to our coating technique all Astronomik filters are highly scratch resistant, not sensitive to moisture and do not degrade when getting older. -Every Astronomik filter will deliver it´s full perfomance and meet the specs at the point of shipping even after lot´s of years.
  • Integated Blocking: All unwanted light is blocked in the whole spectral range from UV up to the IR! (You will not need an additonal UV & IR-Blocker when imaging with the new Narrowband-Emissionline Filters with MFR coating!)
  • Wide range of available sizes from 1,25" up to square 50mm x 50mm filters.
  • Delivered in a high-quality Protection & storage box.
  • Due to our outstandding Coating technique we do offer a 10 year guarantee on all of our filters. (Check some forums, we REALLY do so!)

You get the highest quality possible with every single Astronomik filter to be able to take perfect images with your instruments! Especialy the filters against Lighpollution and the Narrowband-Emissionline filters will expand your imaging possibilities enormous! You are investing your money for an accessory which will work in lot´s of years in the same ways it did when it was brand new. Due to our special coating technique the filters do not degraed when getting older, and due to the new MFR coating you will be able to use the filter on nearly all instruments!

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The product comes with 1 year warranty.

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