- This is a used filter in excellent condition
- 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
Used Astronomik 1.25" Clear Filter-UT-11697-SOLDThis 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 doesn't modify the spectral transmittance of your system it doesn't alter the colors. It's 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 worlwide. They like the great coating and scratch resistance!
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. They can be used as a dust protection of Schmidt-Cassegrain, Schmidt-Newton or Maksutov system or as a dust protection in front of DSLR camera, and as an alternative instead of the UV-IR-Blocker if your system has no refracting elements. (You should think about using the IR-blocker or even the UV-IR blocker if you have a system with any refracting elements.)
- Astronomik 1.25" clear filter
- Foam lined plastic case
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