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Astronomy > Filters > Planetary & Comet Filters > Baader > Baader Filters 470nm 1.25"
Product no.: 10866

Filters 470nm 1.25"

$ 59.00 incl. VAT plus shipping costs
short-term
ready for shipping in 1-2 weeks + lead time
Compare the article with this offer: Omegon Filters #80A 1.25'' colour filter, blue

Product description

Baader colour filters are carefully manufactured for amateur astronomical use. The glass is finely polished to be plane-parallel. These filters far exceed the quality of the usual "roughly polished" (= hot-blazed) colour glass filters.

Thanks to their fine optical polish, these filters can be used at any point in the beam path – well in front of the focal point – (e.g. in front of a binocular attachment!) without causing optical errors (astigmatism) or otherwise impairing the image in any way!

Further special features of Baader filters:

  • Elaborate frame with the largest possible free opening to prevent vignetting
  • CNC-milled "crown grip" – offers excellent handling comfort
  • 7-layer anti-reflection coating on both sides with only 0.25% residual reflection per surface

Light blue bandpass filter 470 nanometres: Filter for visual and photographic planetary observations

  • For observing high clouds on Mars, for increasing the contrast of haze layers at the terminator of Mars (violet clear glass)
  • Shows reddish structures darker, therefore the ideal filter for observing the Great Red Spot on Jupiter - also shows details in Saturn's rings better
  • For observing structures in the atmosphere of Venus, also highlights fine details in gas tails of comets

Specifications

Capacity


Connection (to the telescope)
1,25"
Mount material
Aluminium
Coating of optical system
multiple
Frame
1,25"
Central wavelength (nm)
470
filter thickness (mm)
2

General


Type
Filters
Type of build
Planetary & Comet Filters

Area of application


Anti light-pollution
-
Visually useful
yes
Daylight and twilight observation
-
Mercury
-
Moon
-
Venus
yes
Mars
yes
Uranus
-
Saturn
yes
Jupiter
yes
Useful for photographs
yes

Product safety

Manufacturer: Baader Planetarium GmbH, Zur Sternwarte, 82291 Mammendorf, DE, www.baader-planetarium.de

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*All prices include VAT plus shipping costs.

Baader Filters 470nm 1.25"
Light transmission curve

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