La Società Canottieri, Firenze, Part 2 - la canottieri
Half Ball lensfocal length
Based on mature precision spherical lens processing, GELINDE provides a wide range of hemispherical lens products with diverse specifications and materials. Our product range includes hemispherical lenses, sub hemispherical lenses (hypo-hemisphere), super hemispherical lenses (hyper-hemisphere), and spherical drum lenses, fabricated from materials including optical glass, fused silica, optical ruby, and optical sapphire.