The telescopic tube Skywatcher Optical Tube BKED 120 OTAW Black Diamond is an excellent 120mm ED apochromatic lens, specially designed for astronomers and astrophotographers. With a diameter of 120mm and a focal length of 900mm, it offers an f/7.5 focal ratio, ideal for observing deep sky objects such as nebulae, star clusters, and galaxies.

• Optical design: The air-spaced doublet lens, made from FPL-S3 glass, significantly reduces chromatic aberrations, ensuring clear and high-contrast images.
• Focal length: At 900mm with an f/7.5 focal ratio, it provides practical magnification up to 240x.
• Coatings: Sky-Watcher’s exclusive coatings enhance light transmission up to 99.5%, ensuring bright and clear images.
• Focusers: The 2-inch dual-speed Crayford focuser allows smooth adjustments and works with both 2-inch and standard 1.25-inch eyepieces.
• Finderscope: Usually includes an 8x50 or 9x50 finderscope for accurate targeting of celestial objects.
• Physical dimensions: With a tube length of approximately 62 cm, diameter of 10 cm, and weight around 5.13 kg, it balances portability and stability excellently.
• Additional accessories: Often includes mounts and a 2-inch 90-degree diagonal with a 1.25-inch adapter for improved convenience during observation.

This optical tube is designed for those seeking a high-quality apochromatic lens capable of delivering detailed planetary observations and wide, bright fields ideal for astrophotography setups. The advanced ED optics and premium coatings guarantee exceptional image quality.