Alstar Barlow Lens 2 Inch 2.5X with Multi Coated Broadband Green Film

Alstar Barlow Lens 2 Inch 2.5X with Multi Coated Broadband Green Film

• Advanced Optical Performance: Features 4-element apochromatic lens design with fully multi-coated broadband green film to eliminate chromatic aberration and deliver edge-to-edge sharpness; Professional-grade optics ensure exceptional image clarity with accurate color reproduction; making it ideal for planetary observation and lunar detail imaging
• Precision 2.5X Magnification: Provides true 2.5x magnification to extend your telescope's focal length without compromising image quality; Effectively frames celestial objects that appear too small in standard eyepieces; allowing detailed observation of planetary surfaces and lunar features at significantly closer apparent distances
• Secure Eyepiece Mounting System: Equipped with brass compression ring mechanism that ensures secure attachment without damaging expensive eyepieces; The screw-free design provides gentle but firm grip; complemented by dual knurled thumbscrews for easy adjustment even when wearing gloves during nighttime observations
• Universal Compatibility & Adapter System: Includes 2-inch to 1.25-inch adapter for seamless compatibility with both eyepiece sizes; Features M48x0.75 female filter thread for attaching 2-inch astronomy filters; The versatile design works with all telescope accessories of corresponding diameters; maximizing your equipment's versatility
• Premium Build Quality & Durability: Constructed with hard-anodized aluminum barrel for lightweight yet durable performance; The precision CNC-machined components maintain perfect optical alignment while withstanding regular use; Professional construction ensures long-term reliability for both visual observation and astrophotography applications