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Observatii solare > Filtre solare > Filtre din sticla cu cadru > DayStar > DayStar Filtre Energy Rejection Filter E-200N150
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Filtre Energy Rejection Filter E-200N150

$ 1.840,00 incl. TVA, plus costuri de livrare
prea scump?
termen prelungit
gata de livrare in 3-6 luni + timp de tranzit

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Din pacate, descrierea acestui produs nu a fost inca tradusa in limba romana, din acest motiv veti gasi in loc o descriere in limba engleza.

Energy Rejection Filters

Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV and/or I light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light entering the filter.

DayStar filter assemblies operate best at f/30 and slower. Creating f/30 configuration can be done easily with the proper ERF and/or barlow as listed below. If you don't see your telescope, visit our full list of reflectors or refractors or contact us for your exact model. Higher resolution, larger aperture configurations use a barlow.

Note the naming scheme of Daystar's ER filters. Example E-110N80

  • E simply stands for ER-Filter
  • The first number, in the example 110, stands for the outer diameter of the dew cap (refractor) or tube (SCT). The ER filter is attached to this outer diameter.
  • N stands for On-Axis. This means that the window is centered. F stands for Off-Axis. This makes sense for SC telescopes, as a central window would be directly above the secondary mirror.
  • The second number indicates the free passage, i.e. the size of the window. In the example: 80 millimeters

Date tehnice

Capacitate


Transmisie libera (mm)
150
Diametru (mm)
200
Recomandat pentru telescop
Refractor

General


Tip
Filtre solare
Tip constructiv
Filtru adițional ERF

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*Toate preţurile includ TVA, plus costurile de transport maritim.

DayStar Filtre Energy Rejection Filter E-200N150

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