Convex Lens Double is an SSI India product in the OPTICS category. Key specifications include SKU: SSI.PHY.OPT.001. Diameter Focal Length: 1000 mm Power: +1.00D ii. Diameter Focal Length:50mm Power: +20.00D iii. Diameter Focal Length: 100 mm Power: +10.00D iv. Diameter:38mm Focal Length: 150 mm Power: +6.67D v. Diameter:38mm Focal Length:
