New from William Optics! A unique 50mm finder OTA with a 90-deg erecting prism diagonal with helical focuser providing a right angle correct image. Use standard 1.25" eyepieces to get the magnification and field of view you like! Optical Features • Fully multi coated 50mm f/4 (focal length = 200mm) achromatic objective • 90-deg high-quality erecting prism diagonal included • Provides 10x magnification with a 20mm eyepiece or 8x with a 25mm eyepiece • Eyepiece not included Mechanical Features • 1.25" diagonal features helical focusing with 15mm (0.59") of focus travel • Diagonal / eyepiece are rotatable • White powder painted with excellent fit and finish that are the hallmark of every William Optics product
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