Manufacturer: -TS Zubehör
Product number: TSB51

EUR 79,00


incl. 19 % VAT (DE)  
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  • On stock





rating: 5.0 of 5
  • Details..
  • Technical data..
  • In the box..
Apo Barlow 5x - 1.25"

For high magnifications, like for observing moon and planets, you need to use short focal length eyepieces. These are often either very expensive or have a very narrow eye relief, making them rather uncomfortable to use.

For astro-imaging with a large magnification you can do eyepiece projection, but this offers only a limited sharpness throughout the photographical field.

The TS Optics APO Barlow lens is the ideal alternative for both applications.

Fields of Use:

The large magnification factor 5x turns for example a 25 mm Plossl eyepiece into a 5 mm eyepiece, while retaining the comfortable eye relief of the longer eyepiece. This is very comfortable for observing planets.

For high magnification astro-imaging, like for webcam imaging of the planets, you could use eyepiece projection photography. The better alternative is the 5x Barlow lens because it offers a better field sharpness than typical eyepiece projection. Experience shows that for planetary imaging an effective focal ratio of f/25-f/30 is ideal. As a result this Barlow is the perfect match for most Newtonian telescopes.

The Lens Element:

The three-element Barlow lens is fully multi-coated for a bright and high contrast image.
Magnification Factor:5x - visual use
Optical Layout:3 element apochromatic design (air-spaced)
Coating:Fully multi-coated
Blackened Lens Edges:Yes. For suppression of internal reflections.
Mechanical Quality:All metal design. Short length
Clamp Mechanism:precise lock by brass compression ring
Apo Barlow Lens, 1.25"
plastic dustcaps on both sides



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Reviews

Written by Alfred Krohn
on 2021-10-12

"konnte es leider noch nicht testen,aber ich bin überzeugt,daß dieser Apo-Barlow ein hochwertiges Zubehör ist."

Written by Ivan Vasilev
on 2021-08-31

"High quality product!"

Written by Detlef Buckwitz
on 2017-04-10

"Naturgemäß wesentlich besser als meine alte achomatische Barlow. "

Written by Frederic Kappeller
on 2017-02-28

",hab es leider wetterbedingt in der praxis nicht probieren können,auf dem ersten blick scheint es ok zu sein."