Precision 2.5x Magnification Boost: This 2.5x deluxe barlow lens delivers authentic 2.5x magnification without compromising edge-to-edge sharpness; perfect for capturing planet or lunar rille details at extended focal lengths
Professional-Grade Multi-Coating System: Feature fully multi-coated apochromatic lens system with 4 elements design; effectively minimize chromatic aberration and ensure clear and sharp imaging performance; perfect for high-contrast planetary observation
Engineered with Mutiple-Layer Material: Constructed from anodized aluminum provide using cycle and lightweight portability; Integrated with premium optical glass significantly enhance chromatic aberration correction and deliver exceptionally better image
Male thread - M48X0.75; Female thread - M48X0.75; eliminates a range of focusing problems
The extension tube has a M48X0.75 interior thread and a M48X0.75 exterior thread for elegantly solving spacing problems in astrophotography