SPANCARE PHARMACEUTICALS 75mm Diameter achromat Doublet Lens with 500 mm Focal Length for Telescope

Achromat doublet lens With a good quality eyepiece you can get very clear views of celestial bodies even at higher magnifications 500 mm focal length for telescope 75mm diameter Good for making deep sky telescope PRODUCT DESCRIPTIONSAchromat doublet lens 1. 500 mm focal length for telescope 2. 75mm diameter 3. Good for making deep sky telescope 4. Free of chromatic abberation 5. With a good quality eyepiece you can get very clear views of celestial bodies even at higher magnifications 6 We have tested this lens with many eyepieces 7 The lens quality is very good due to high quality glass used and sophisticated technology used in making this lens