Constructed from premium aluminum alloy, this helical focuser is designed for astrophotography enthusiasts seeking precision and durability. The 10mm focusing stroke ensures meticulous adjustment capabilities, enhancing your celestial viewing experience without any shift during observation. This focuser is equipped with a double helical design that minimizes lateral movement and maintains a stable focus, crucial for capturing high-quality astrophotography images. Its robust construction is complemented by an IPX4 water resistance level, making it suitable for use in various weather conditions. Originating from Mainland China, this telescope accessory is crafted to meet rigorous standards, ensuring reliability and performance. It's an essential tool for astronomers who demand precise focusing capabilities and robust build quality in their astrophotography equipment. Designed to be user-friendly, this focuser integrates seamlessly with most telescope setups. It offers a straightforward installation process, making it accessible even for amateur astronomers who are to astrophotography. The focus mechanism operates smoothly, allowing for fine adjustments with minimal effort. Description/Features: Experience precision with the Telescope Helical Focuser 1.25 Inch, crafted from durable aluminum alloy. This high-accuracy, double helical focuser is designed for serious astronomical enthusiasts. It features a 10mm focusing stroke for fine-tuning your telescope's focus, accommodating a variety of eyepieces and imaging equipment. The anti-rotation design ensures linear movement without rotation, maintaining alignment and preventing misalignment of eyepieces during adjustments. Ideal for both observation and astrophotography, this focuser minimizes image shift, providing clear and stable images to capture celestial phenomena. Specifications: Item Type: Telescope Helical Focuser Material: Aluminum Alloy Big Thread: M42x0.75mm, Length: 9mm / 0.35in (Note: T2 has no locking design)