Barlow Lenses double the power of an eyepiece while maintaining a good image field correction. A 9mm eyepiece in a refractor telescope with 700 mm focal length enables a magnification of 78x; with a Barlow lens the same eyepiece the magnification increases to 156x!
Experience astronomy with BRESSER
Large selection of telescopes and accessories - for beginners and professionals
- Solar Astronomy
- Spare parts