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769 meters
Dimension: 218
Nondestructive testing
110° wide range flood optic system ideally covers the field of view of human eyes
Bresser Barlow Lens Extender - 2x, 31.7mm Binocular 769 metersBresser Barlow Lens Extender 2x, 31. 7mm With the usage of barlow lenses, you can extend the equivalent focal length of telescopes and hence increase the magnification of your observed targets. Subsequently, you can use lower power eyepieces in Barlows to act as much more powerful eyepieces, but retain the larger ocular size and more comfortable viewing that comes with lower power eyepiece designs. Due to their two lens design, these Barlow lenses