Antlia IR-pass filter 850nm (31.7mm)

incl. 27% VAT

49.00
Including 27% VAT:
49.00 € (18 620 HUF)
Net price (for non-EU customers):
38.58 € (14 661 HUF)
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Product code: AntIR850-1z

Antlia IR-pass filter 850nm (31.7mm)

The Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of more than 850nm to pass through. It is a supplement filter of IR Pass 685nm. At these longer wavelengths, the sensitivity of the unaided eye is reduced, so it is not suitable for visual observations. The filter is highly recommended for any planetary photography. At long-wavelength spectral range the atmospheric air turbulence (seeing) has much lower impact on the sharpness. The closer to the infrared band, planetary images are less disturbed by wavefront distortions in the atmosphere (seeing), result in the sharpest and highest contrast image possible.

By combining a luminance image taken with the IR-Pass filter, along with RGB and U-Venus filters, overall image sharpness is significantly enhanced and details of planets in different bands are taken. The filter is also possible to image the other planets during daylight due to the dark background sky created by the 850nm IR Pass Filter.

Technical Data:

  • Schott optical substrate
  • 1.25” mounted, (2mm+/-0.05mm)
  • Surface Quality: 60/40 (Refer to MIL-O-13830)
  • 2 sides fine-optically polished to ensure accurate 1/4 wavefront
  • 30 arcsec parallelism

Filter Ring:

  • 1.25”( 28.5*0.6 )
  • Ultra-thin filter cell to minimize vignetting by maximize possible clear aperture
  • Black Anodized Finish
  • Laser Engraving No Fading

Not recommended:

  • Solar Observing and imaging
  • Visual observation
  • DO NOT LOOK AT THE SUN WITH ANTLIA FILTERS.
  • Serious eye damage will result if you fail to observe the warning.

More about the product

When using monochrome (black and white) CCD cameras (like The Imaging Source, ALCCD5, etc) filters are needed to produce dcolor images.

The Astronomik LRGB 4 filter-kit was designed especially for CCD imaging, resulting in true color images, even when taking images with continuum or emission spectrum. This filter set is the best in its class.

The Astronomik Pro Planet 642, 742 and 807 or Castell IR-Pass filters are used to capture images in the near infrared light there atmospheric distortions are less evident, resulting in higher resolution when imaging planets or the Moon. Can be used with excellent results for Moon, Mars, Jupiter, Saturn and other planets.

The ZWO 1.25″ IR 850nm Pass Filter is suitable for IR sensitive cameras. You don’t need to debayer and get the full resolution of this sensor when use it with a color camera such as the ZWO ASI224MC or ASI185MC, because the QE responce  of sensor beyond 850nm is all the same (i.e. infrared light passes through the Bayer colour layer). So you can use a color camera as mono camera with this filter, just don’t forget to keep the WB_R and WB_B settings to 50 (no White Balance applied).

 

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