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Solar observation Optical Design Achromatic Refractor Magnification 45 - 675x Maximum Recommended Magnification 140 Mirror Diameter (mm) 70 Lens Diameter (mm) 70 Focal Length (mm) 900 Angular Resolution (Arc Seconds) 1
This will avoid brass particle coating from adhering to equipment surfaces
Dimension: 218
6(Length)x 75mm(Tube Diameter) x 51
Working as a hands-free illumination
Acebeam H16 High CRI Headlamp- 650 Lumens/86m 5000K (NEW) Acebeam H16:Acebeam H16 High CRI Headlamp- 650 Lumens/86m 5000K (NEW) Solar observation Optical Design AchromaticAcebeam H16 High CRI Headlamp 650 Lumens 86m 5000K (NEW) Compatible with one AA Alkaline or NiMH rechargeable battery, wide range of Voltage design: 0. 9V~4. 2V Durable tempered glass lens with AR film plating for scratch resistance, light transmittance reach up to 99% High efficiency constant current circuit board provides maximum runtime of 58 hours Low voltage warning design One switch controls 5 brightness levels and 1 special mode sos Comfortable
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