TS-Optics 2x Apo,1.25 inch, 3-element Barlow ♦ Suppression of street lights

♦ Suppression of street lights for general increase of contrast - sky-glow filter

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Type  Refractor Type of build  Apochromat  Aperture (mm)  80 Focal length (mm)  500 Aperture ratio (f/)  6

Main mirror´s construction  parabolic Secondary mirror obstruction  35 Secondary mirror diameter (mm) 70 Ventilation for central mirror  yes reflectivity 94 Adjustable yes protective layer Quartz

TS-Optics 2x Apo,1.25 inch, 3-element Barlow ♦ Suppression of street lightsDescription A high quality Barlow lens with nearly no false colour. Doubles the focal length and therefore the magnification 1. 25" Connection Free aperture 26 mm Apochromatic design with 3 elements Fully multi coated optics Solid design, elegant finish Precise and gentle lock by brass compression ring Filter thread for standard 1. 25" filters The APO Barlow from TS combines good image quality with compact design. So this lens cannot only be used with