High-Definition 154mm Double Separation Objective Lenses for Astronomical Telescopes(D154F1200 Single-Layer)

Premium 154mm diameter objective lenses devised for astronomical telescopes, enhancing your stargazing experience. Available in two focal lengths: 750mm and 1200mm, providing versatility for various observational needs. Features multi-layer broadband film coating (400-700nm) or single blue film layer options for optimal light transmission. Precision-engineered with a combined image of 1/4-1/8 and strict tolerances for diameter and focal length. Ideal for DIY telescope assembly, suitable for objective lenses, star-seeking lenses, and collimating objective lenses.