5x achromatic Barlow (31.7mm)

incl. 27% VAT

46.58
Including 27% VAT:
46.58 € (17 700 HUF)
Net price (for non-EU customers):
36.68 € (13 937 HUF)
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Delivery:
Available for delivery
Budapest shop:
In stock
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Product code: B5x

5x achromatic Barlow (3 elements, fully multi-coated)

More about the product

Barlows are used when magnification needs to be increased even further, meaning that the quality of these elements is critical. Using a lower quality Barlow lens degrades image quailty drastically. Using a Barlow lens and a longer focal length eyepiece similar magnification can be used as with an eyepiece with shorter focal length, smaller lenses. Barlow lenses are placed between the eyepiece and the objective lens or mirror. Barlow lenses are available in 31,7mm or 50,8mm sizes. All lens elements in the light path has its effect on the quality but a high quality Barlow lens can be used unnoticed. Barlow lenses can be used to make many more magnifications possible without purchasing additional eyepieces.

Available sizes:
2x achromatic Barlow (31,7mm, 22mm lens, length 79mm out of which 42mm in the focuser)
3x Barlow with ED lenses (31,7mm, 24mm lens, length 126mm out of which 52mm in the focuser)
2x Sky-Watcher Barlow lens with 31,7mm eyepiece and T2 camera adaptor (for eyepiece projection) (22mm lens, length 74mm, out of which 37mm in the focuser)

 

's opinion

After a few weeks, months of usage

Optical quality

Mechanical quality

Price/Value ratio

5x achromatic Barlow (3 elements, fully multi-coated)
5x achromatic Barlow (3 elements, fully multi-coated)
Pros

If you carefully pick the optical elements and don't exceed the limitations of your telescope, results will be more than decent. It holds the oculars and other equipment tightly with its ring system. Build quality is excellent.

Cons

None.

Summary

Excellent price and very applicable for planetary astrophotography. At nights with great seeing, lunar observations are of high quality.

's opinion

Have been using it for years

Optical quality

Mechanical quality

Price/Value ratio

5x achromatic Barlow (3 elements, fully multi-coated)
5x achromatic Barlow (3 elements, fully multi-coated)
Pros

Gyűrűs befogatás.

Cons

Nálam nagyon nagy fokú a fényveszteség. Borzasztóan nehéz a fókuszálás, még mikrofókusszal is.

Summary

Azt hiszem túllöttem a célon, amikor egy 150/750 Newton-hoz választottam bolygó és Hold megfigyeléshez ezt a lencsét (5x). Ekkora fókusznyújtás mellett az optikai minőség igencsak leromlik. Annyira, hogy gyakorlatilag elő sem veszem.

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The product comes with 2 years warranty (excluding electric parts)

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Rating

3.7/5, based on 6 reviews

Optical quality

3.0/5, based on 2 reviews

Mechanical quality

4.5/5, based on 2 reviews

Price/Value ratio

3.5/5, based on 2 reviews

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