Exceptional 154mm objective lens devised specifically for F750 and F1200 telescopes, delivering unmatched clarity and detail for stargazing and observations. Advanced monolayer broadband coating (400-700nm) enhances light transmission and minimizes glare, providing a superior viewing experience for both amateur and professional astronomers. Precision-engineered with a double separation mirror devise, ensuring minimal distortion and delivering superior image for all your astronomical needs. Strict tolerances of +0/-0.12 mm diameter and ±0.1% focal length guarantee optimal performance and reliable setup, making it easy to achieve precise alignment. Achieves an impressive combined image rating of 1/4-1/8, making it the ideal choice for enthusiasts seeking optics for their astronomical explorations.