Astronomik MC-Clear Filter Clip-Filter Pentax K-1

Clip Filter for Pentax K1 and K1 MkII

We are proud to unveil a new member of the Clip-Filter-Family: Clip Filters for Pentax K1 and K1 MkII cameras:

The Clip-Filter are designed and optimized to be used with normal lenses and with telescopes as well.

Compatibility:

• The Clip-Filter are sucessfully tested with Pentax K1 and K1 MkII bodies

A short guide selecting the right filter for you:
Lot´s of customers are overwhelmed by the vast number of filters offered by Astronomik. Due to that we give you a short guide how to select the right filter for your application below.

Our normal recommendation for the "First Filter" is the Astronomik CLS filter. The CLS blocks all unwanted artifical light pollution and natural airglow and gives you a dark background in your images. When using this filter you may expose much longer than without, so you will be able to pick much fainter structures and objects. The filter is designed in such a way that all objects are given in their natural colors. -They would look the same if your human eye would be much more sensitive!
Important: The standard CLS has no built-in IR-blocker. In case your camera has been modified for Astrophotography, please take the CLS-CCD which has a built-in IR-blocker!

The CLS is the fist choice for any applications like Night-scape photography and Time Lapse movies!

If you have to work under a heavy light polluted sky, the UHC is a good choice too: It´s transmission curve is very tight. It gives you the light from the Hß, OIII, H-alpha and SII lines in one single exposure. The reduction of light pollution is much stronger than the CLS/CLS-CCD, but the filter will work for gas nebulas only! Any galaxies and open or globular clusters are filtered out! You will get "false colors" with the UHC, no natural colors like the CLS/CLS-CCD.

If you want to die deeper into Astrophotography with your Sony, you should think about a set of emission line filters centered on OIII, H-alpha and SII. All three are available either with 12nm or 6nm bandwidth. With these filters you can do ultra-deep images even under the worst sky you can imagine plus the full moon high up in the sky! Imaging possibilties are nearly unlimited with these filters!
The emission line filters isolate the light from a very tight range of wavelengths. So you don´t get any color information! if you want to create color images (false color like images from the HST), you will need all three filters to mix the three channels into a final color image.
However the H-alpha filter is a great using it alone: Data can be processed to splendid greyscale images!

If you own a modified camera, you should consider the OWB filter: OWB is short for "Original white Balance", and that´s what the filter does: It gives you back the normal color reproduction from a un-modified camera. When using the OWB you may use your modified camera for normal daylight-photography again, without the need for color-correcting each image afterwards!

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

This filter should be used if the focal plane of your imaging system should stay in the same place as with other Astronomik filters in place. The multicoating prevents you from unwanted reflections. It blocks neither IR nor UV.

The second main application is dust protection of your system (telescope or camera). As the filter doesnt modify the spectral transmittance of your system it doesnt alter the colors. Its great for keeping all dust away from your optics or sensor.

Lots of Astronomik MC Clear filters in custom diameters are sold to camera manufacturers worldwide. They like the great coating and scratch resistance!

Main use

The Astronomik MC Clear is made by the same high-end process as all other Astronomik filters. The coating has the same scratch resistance and the substrate has the same high quality. Because of this it is parfocal with all other Astronomik filters and can be used in any optical system for dust protection without modifying the spectral characteristics and without destroying the optical performance of your system.

Other uses

• As a dust protection of Schmidt-Cassegrain, Schmidt-Newton or Maksutov system or as a dust protection in front of DSLR camera.
• As an alternative instead of the UV-IR-Blocker if your system has no refracting elements.

Alternatives

You should think about using the IR-blocker or even the UV-IR blocker if you have a system with any refracting elements.

Suitability

• Visual observation (dark skies): Reasonable, for dust protection only
• Visual observation (urban skies): Reasonable, for dust protection only
• Film photography: Reasonable, for dust protection only
• CCD photography: Good, to compensate the optical thickness (parfocal with other Astronomik filters); dust protection
• DSLR photography (original): Reasonable, for dust protection only
• DSLR photography (astro modified): Reasonable, for dust protection only
• DSLR photography (MC modified): Reasonable, for dust protection only
• Webcam / Video (Planets): Reasonable, for dust protection only
• Webcam / Video (Deep Sky): Reasonable, for dust protection only

Technical Data

• 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
• Since 2008 we do ship filters with a completely new design. Any kind of halo or strange reflection is a matter of past