70/400 multilayer broadband green film objective lens Key benefits Clearer images with light transmission: Multilayer broadband green film coating reduces reflections and preserves more light, producing sharper, highercontrast images. Low image loss for day and night use: Optimized coating and optical design maintain image quality in both bright and lowlight conditions. Optional doublesided green film: Choose doublesided coating for even higher transmission and reduced stray light when you need maximum clarity. Better results for mobile capture and prolonged viewing: Designed to keep images stable and clear during extended smartphone digiscoping or long observation sessions, improving the success rate of captured images. Features and specifications Optical specification: 70/400 configuration, suitable for 70 mm aperture, 400 mm focal length optical systems. Coating: Multilayer broadband green film on the objective surface; doublesided green film available as an option. Material: quality optical glass with precision coatings for consistent performance. Performance: transmission, low internal loss, improved contrast and reduced flare for clearer visual and photographic output. Compatibility: Intended for use as an objective lens in 70/400 telescopes, spotting scopes, or other compatible optical assemblies that accept 70/400 objectives. Practical applications Smartphone digiscoping: Attach to compatible optics for clearer photos and videos when using a mobile phone for wildlife, landscapes, or distant subjects. Daytime nature observation: Birdwatching and field observation with improved contrast and reduced reflection under bright conditions. Lowlight or casual astronomy: Enhanced transmission helps maintain visible details when observing the moon, bright planets, or backyard sky targets. Why choose this lens Designed to match 70/400 systems without altering original setup. Coating options allow you to balance cost and performance based on observational needs. Focus on optical quality and consistent results for both visual viewing and mobile imaging. Ordering notes Verify compatibility with your instrument before to ensure correct fit for 70/400 objective replacement or upgrade. Select doublesided green film if maximum transmission and minimal stray light are required for extended imaging or lowlight work.