3x 2″ Barlow lens

CHF 1'249

Reference BAR-0005

Free delivery for products over CHF 30
Easy, free returns

The Barlow principle

The principle of a barlow is to multiply the focal length of your instrument. As a result, the eyepiece you use with it will not work at its native focal length, but at twice that. This actually increases magnification for the same eyepiece.

Calculation example

For example, if you have a telescope with a focal length of 1000mm and an eyepiece of 25 mm, then you have a magnification of 1000/25 = 40 times. Now, if you add a barlow to your telescope, the focal length is no longer 1000mm but 2000mm! If we repeat the calculation, we get a magnification of 2000/25 = 80 times.

Advantages of the Barlow

So, with the same eyepiece, you can vary the magnification of your optical set. That's the whole point of having a barlow. As such, you can double your range of eyepieces!

Explore Scientific Barlows quality

Explore Scientific barlows are excellent. Thanks to an ingenious four-lens system, they offer exceptional image quality across the entire field of vision. Perfect for observing, they can also be used for photography!

Multiplication factor3
Flow2"
Weight770 g
No screwsData currently being integrated, estimated availability shortly
In the boxData currently being integrated, estimated availability shortly
Special featuresData currently being integrated, estimated availability shortly

Why choose Deep Space Astronomy?

Because astronomy is our passion! Our team of experts is here to guide you in your choice of equipment, from beginner telescopes to the most sophisticated astrophotography equipment.

  • Personalized advice: Take advantage of our expertise to choose the ideal instrument for your needs and budget.
  • A wide choice of products: We offer a rigorous selection of quality equipment from the leading brands on the market.
  • Customized training: Expand your knowledge of astronomy with our online and face-to-face training courses.
  • Responsive after-sales service: We're here to help you make the most of your experience.

Products in the same category

Explore Scientific 2" 92° - 12mm
Explore Scientific 2" 92° - 12mm
CHF 549
Écran à flat GIOTTO 185
GIOTTO 185 flat screen
CHF 369
Roue à filtre CFW3M-SR 7 positions 36mm non-montés
Filter wheel CFW3M-SR 7 positions 36mm unmounted
CHF 299
SESTO SENSO 2
SESTO SENSO 2
CHF 269
Kit de mise au point automatique pour SQA55
Autofocus kit for SQA55
CHF 79
Explore Scientific 1.25" 82° - 14mm
Explore Scientific 1.25" 82° - 14mm
CHF 199
Alimentation 12V 20A - Connecteur DC XT60
Power supply 12V 20A - DC connector XT60
CHF 149
Adaptateur M54/M48 pour Sony E (backfocus de 37mm)
M54/M48 adapter for Sony E (37mm backfocus)
CHF 59
Réducteur 0.8x APO120
Reducer 0.8x APO120
CHF 209
Résistance chauffante pour Ø 50mm
Heating resistor for Ø 50mm
CHF 55
Réducteur 0.7x FRA600
Gearbox 0.7x FRA600
CHF 399
Colliers 105mm PLUS
105mm PLUS clamps
CHF 259
Explore Scientific 2" 100° - 9mm
Explore Scientific 2" 100° - 9mm
CHF 399
Écran à flat GIOTTO 285
GIOTTO 285 flat screen
CHF 699
Colliers 180mm PLUS
180mm PLUS clamps
CHF 399
Poignée de transport pour SQA
Carrying handle for SQA
CHF 89

Our new products

Filtre d'augmentation de contraste UHC Pro Antlia
Filtre d'augmentation de contraste UHC Pro Antlia
CHF 139
Filtres photométriques Antlia SLOAN (g'r'i'z') - 4 pièces
Filtres photométriques Antlia SLOAN (g'r'i'z') - 4 pièces
CHF 1'439
Filtre Antlia Solar Discover Dualband ERF (Réjection d'énergie)
Filtre Antlia Solar Discover Dualband ERF (Réjection d'énergie)
CHF 119CHF 2'299
Filtre Antlia Solar Discover Dualband Ha, CaK et CaH
Filtre Antlia Solar Discover Dualband Ha, CaK et CaH
CHF 109CHF 169
Filtre Antlia Solar Discover 5Å CaK
Filtre Antlia Solar Discover 5Å CaK
CHF 29CHF 949
Prisme de Herschel Antlia CaK 3nm
Prisme de Herschel Antlia CaK 3nm
CHF 349
Filtre Antlia Solar Discover 3nm Calcium (CaK) 3nm
Filtre Antlia Solar Discover 3nm Calcium (CaK) 3nm
CHF 379
Filtre planétaire IR Pass 850nm
Filtre planétaire IR Pass 850nm
CHF 59
Filtre planétaire IR Pass 685nm
Filtre planétaire IR Pass 685nm
CHF 59
Filtre planétaire Antlia U-Venus
Filtre planétaire Antlia U-Venus
CHF 179
[category_menu_mobile]