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Astronomy > Filters > Planetary & Comet Filters > Baader > Baader Filters 610nm 1.25"
Product no.: 10869

Filters 610nm 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 Color filter red 1.25''

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

Red long-pass filter 610 nm: Red filter with steep absorption edge. Filters the H-alpha line out of the visible spectrum

  • Blue and blue-green light is almost completely blocked, increasing the contrast between the bright zones and dark bands on Jupiter and Saturn
  • The most interesting filter for observing the polar caps of Mars
  • Optimal filter for daytime observation of all planets

Specifications

Capacity


Connection (to the telescope)
1,25"
Mount material
Aluminium
Coating of optical system
multiple
Frame
1,25"
passband (nm)
> 610
filter thickness (mm)
2
Transmission
98

General


Type
Filters
Type of build
Planetary & Comet Filters

Area of application


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

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 610nm 1.25"
Light transmission curve

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