Gerd Neumann jr.

Development and production of
optical and mechanical Instruments


You are here: Products -> Astronomik filters -> Astronomik LRGB Type IIc
products:
Astronomik LRGB Typ IIc Set 1,25"
Art.-Nr.: 10.210.125
AstronomikLRGB Typ IIc Set 2"
Art.-Nr.: 10.211.200
Astronomik LRGB Typ IIc Set 50mm
Art.-Nr.: 10.211.540

matching products:
filterwheel FR-03
filter drawer system
adapters

Astronomik LRGB Type IIc filters

The transmission curves of the Astronomik RGB filters are optimised for the CCD- astronomy: With these filter-set, we finally can offer filters that make colour proof pictures of all objects possible. Continuum radiators like stars and galaxies as well as objects that shine only in single lines (e.g. planetary nebulas), are reproduced in their true colours. Because of the design of the band pass of the filters, the colour sensitivity of the human eye is optimal reproduced. You get CCD- pictures, that show the object optimal in his colours, just as if you would see it, if your eye would be sensitive enough.

Astronomik TYP II filter set

Astronomik RGB TYP II

The Astronomik Type II filter will permit colour pictures without an extra IR- cutoff filter, because each of the three filter will be blocked near to the infrared (~1150nm). All three filter have the same thickness, so that colour images without focussing between the singular pictures will be possible. They are designed to work with nearly all CCD sensors available on the market. With these sensors you get pictures with a very good color balance.

  • Astro- optimized transmission curves for images without color-shifts
  • each filter blocks the IR, no additional filter necessary
  • Correct images as well for very red as for deep blue objects because of reproduction of the eye´s sensitivity
  • Transmission of nearly100%
  • Same optical thickness of all filters
  • Insensitiv to high humidity, scratches and aging
  • Glas substrate of very high quality: You get the sharpest images your scope can deliver

These filters are available in the following sizes:

mounted filter in 1,25" (31,8mm) cell
mounted filter in 2" (50,8mm) cell
unmounted filters with 38mm diameter (34mm optical)
unmounted filters with 50mm diameter
unmounted filters with custom diameters up to 50mm are available upon request

Impressum: Gerd Neumann (2008)