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Astronomy > Filters > Pass Filters > Astronomik > ProPlanet 807 > Astronomik Filters ProPlanet 807 IR bandpass EOS clip filter
Product no.: 43800

Filters ProPlanet 807 IR bandpass EOS clip filter

$ 102.00 incl. VAT plus shipping costs
short-term
ready for shipping in 3-7 days + lead time

Product description

The ProPlanet IR 807 is intended as a supplement to the ProPlanet IR 742, for very poor seeing conditions and telescopes with sufficient light gathering power.

Mode of operation: The ProPlanet IR 807 filter cuts off the visible part of the spectrum and only opens at a wavelength of 807 nm. This blocks the areas of light that are particularly sensitive to seeing and allows the areas of longer wavelength light that are significantly less sensitive to seeing to pass through. This approach visibly reduces seeing problems in planetary and lunar photography without significantly reducing the sensitivity of the imaging sensor.

The loss of sensitivity in most cameras with the IR 807 compared to the IR 742 is about one f-stop, corresponding to 50%, or, conversely, a doubling of the exposure time. The one-millimetre-thick filter is homofocal with all other Astronomik filters.

The filter is not sensitive to moisture, does not age and is scratch-resistant. It comes in durable packaging.

Please note: In principle, all camera lenses can be used with the Clip-Filter - i.e. Canon EF lenses or camera lenses from other third party manufacturers such as Sigma, Tamron, Tokina, Walimex etc. However, the use of clip-filters with Canon EF-S lenses is NOT possible!

Specifications

Capacity


Connection
EOS Clip
Mount material
Aluminium
Transmission
97
Frame
Clip-Filters
Appropriate for...
Canon EOS

General


Series
ProPlanet 807
Type
Filters
Type of build
Pass Filters

Area of application


Jupiter
yes
Comets
yes
Mars
yes
Mercury
yes
Moon
yes
Saturn
yes
Uranus
yes
Venus
yes
Visually useful
-
Useful for photographs
yes

Product safety

Manufacturer: astro-shop, Eiffestr. 426, 20537 Hamburg, DE, www.astro-shop.com

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*All prices include VAT plus shipping costs.

Astronomik Filters ProPlanet 807 IR bandpass EOS clip filter

How do I interpret these transmission curves?

  • the wavelength is plotted in nanometers on the horizontal axis. 400nm corresponds to deep blue, 520nm to green and at 600nm to red
  • transmission, in %, is plotted on the vertical axis
  • visual filters: The gray curve shows the relative sensitivity of the dark adapted human eye at night
  • photographic filters: The gray curve shows the relative sensitivity of a typical CCD sensor
  • orange: the main emission lines which contribute to artificial sky glow, e.g lines from mercury (Hg) and sodium (Na)
  • green: the most important emission lines from nebulae, such as the lines from hydrogen (H-alpha and H-beta) and the lines from oxygen (OIII)

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