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Astronomik and Gerd Neumann Filters

Astronomik filters are a valuable complement to your telescope optical equipment train. They are used worldwide by professionals and advanced amateurs because of their superior quality.

Superior Substrate: Astronomik filters consist of a precision polished substrate on which the actual filter, in the form of very thin (dichroic) interference layers, is applied. Because of these high quality measures Astronomik filters will in no way reduce the performance of your optical system. And contrary to common experience with other manufacturers´ filters, with Astronomik filters stars remain fine needle points of light! 

Coating: Astronomik filters consist of up to 130 layers deposited on top of the completely transparent carrier glass. These layers work as the actual filter and as an antireflective coating. 

Durability: Astronomik filters are completely scratch resistant, and not sensitive to moisture, dew, or high humidity. With others’ filters, after a few years, you start to notice their filter is no longer up to its full capability. Not so with Astronomik filters which maintain their ‘brand new’ transmission specifications year after year.

Parafocal Filters: All Astronomik CCD Filters are parafocal. When changing filters, the focal point will not change; you will not have to refocus your camera. This is due to the high tolerance and very low thickness of the substrate and coating.

Comparing Astronomik CCD Photographic Filters to our Visual Filters: Unlike Astronomik Visual Filters which do not require IR blocking, our Astronomik CCD Photographic Filters do include IR blocking filter layers to prevent any problems from Infrared Radiation (IR) when using CCD and chemical photographic devices.

Astronomik filters come with a 10 years warranty. 

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Astronomik CLS Filter

Astronomik CLS FilterFrom:  £67.00

The Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass.

Astronomik CLS-CCD Filter

Astronomik CLS-CCD FilterFrom:  £89.00

The filter enhances the contrast between all deep-sky objects and the background.

Astronomik OIII Visual Filter

Astronomik OIII Visual FilterFrom:  £89.00

From the start, the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae.

Astronomik OIII CCD Filter

Astronomik OIII CCD FilterFrom:  £116.00

This Astronomik OIII-CCD Filter is suitable for imaging of OIII nebulas from observation sites with light pollution and from dark sites as well.

Astronomik UHC Filter

Astronomik UHC FilterFrom:  £80.00

You will enjoy using your Astronomik UHC filter because you will see more stars and more details in deep-sky-objects compared to using filters from all other manufacturers.

Astronomik UHC-E Filter

Astronomik UHC-E FilterFrom:  £58.00

The UHC-E filter is for deep-sky observation of emission nebulae and comets under light polluted skies, particularly suitable for small ’scopes.

Astronomik H-alpha CCD Filter

Astronomik H-alpha CCD FilterFrom:  £116.00

This H-alpha Filter is suitable for imaging of Hydrogen nebulas from observation sites with light pollution and from dark sites as well.

Astronomik H-Beta Visual Filter

Astronomik H-Beta Visual FilterFrom:  £89.00

The Astronomik H-beta is a filter for visual observation, in particular with instruments of larger aperture.

Astronomik SII CCD Filter

Astronomik SII CCD FilterFrom:  £116.00

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!

Astronomik Luminance Filters (UV/IR Block) L-1, L-2, L-3

Astronomik Luminance Filters (UV/IR Block) L-1, L-2, L-3From:  £44.00

The different spectral window of each new Luminance filters is designed to tune your setup to get the sharpest image from any optical design and any camera.

Astronomik IR-Block Filter

Astronomik IR-Block FilterFrom:  £35.00

Put this filter in front of your camera and you will get rid of all problems caused by IR like bright halos around all objects and a very soft overall image.

Astronomik MC-Clear Filter

Astronomik MC-Clear FilterFrom:  £31.00

This Multicoated (MC) glass serves as dust protector or to keep your system parfocal with other Astronomik filters.

Astronomik ProPlanet 642 BP Filter

Astronomik ProPlanet 642 BP FilterFrom:  £58.00

The Astronomik ProPlanet 642 BP is the lastest addition to the family of Astromik ProPlanet IR-pass filters.

Astronomik ProPlanet 742 Filter

Astronomik ProPlanet 742 FilterFrom:  £44.00

Ideal filters for the reception of the moon and planets, notably Mars, with telescopes from 6" (150mm) aperture.

Astronomik ProPlanet 807 Filter

Astronomik ProPlanet 807 FilterFrom:  £44.00

The effects of seeing are distinctly reduced. It is your entry into previously unknown dimensions of photography of the moon and the planets.

Astronomik OWB CCD Filter

Astronomik OWB CCD FilterFrom:  £116.00

Enables converted DSLR cameras (without inbuilt IR-filter) in order to be used for 'terrestrial' photography.

Astronomik Deep-Sky RGB Filterset

Astronomik Deep-Sky RGB FiltersetFrom:  £232.00

The new Deep-Sky RGB filters are designed for maximum deep sky imaging performance with CCD cameras.

Astronomik L-RGB Type 2c Filterset

Astronomik L-RGB Type 2c FiltersetFrom:  £71.00

Our filter set especially designed for astrophotography with CCD cameras, providing a natural color reproduction of planets, stars, emission- and reflection nebulas.

Aurora Flatfield Panels

Aurora Flatfield PanelsFrom:  £65.00

The Aurora Flatfield Panel is a new light source technology for taking flat field images for use in calibration with digital images.

Gerd Neumann Dark Filter 1.25''

Gerd Neumann Dark Filter 1.25"From:  £19.00

A dark filter making the aquisition of dark-calibration frames a breeze!

Gerd Neumann 1.25'' Methane Filter

Gerd Neumann 1.25" Methane Filter£179.00

Using this filter, you may use much longer exposure times to capture faint moons, rings or ring fragments as they do reflect sunlight and have no absorption band.


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