3x Barlow Lens for 1.25 inch Eyepieces A universal 3x Barlow lens designed for use with 1.25 inch eyepieces. Provides a compact telescopic eyepiece option with a fixed screw to secure the eyepiece in place. Uses an advanced achromatic lens system to reduce color fringing and increase sharpness for higher magnification viewing. Suitable for owners of fast short nuclear telescopes and other telescopes that accept standard 1.25 inch barrels. Key benefits Multiply magnification by three: Converts any compatible 1.25 inch eyepiece into a higher power eyepiece for closer views. Increased effective magnification up to 15 times depending on eyepiece choice and telescope setup, allowing finer detail when required. Secure eyepiece locking: Fixed screw holds the eyepiece firmly in position to prevent rotation or slipping during observation. Improved image quality: Advanced achromatic optics provide better color correction and sharper images compared to simple lenses. Universal compatibility: Fits standard 1.25 inch eyepieces and standard 1.25 inch telescope focusers and diagonals. Specifications and attributes Power: 3x magnification for compatible eyepieces. Barrel size: 1.25 inch standard barrel. Optics: Achromatic lens design for color correction and enhanced sharpness. Mounting: Fixed thumbscrew for positive eyepiece retention. Function: Optical magnification converter for visual observation and compatible imaging setups. Typical use scenarios Planetary and lunar observation: Increase the power of a medium power eyepiece to examine surface details on the Moon and planets without changing eyepieces. Double star and small object viewing: Boost magnification to resolve close double stars and small features when seeing conditions allow. Eyepiece testing and quick magnification changes: Use with one eyepiece to achieve multiple magnifications for field testing or switching between targets without carrying extra eyepieces. What to expect in use The 3x Barlow increases the focal length presented to the eyepiece, producing a higher magnification image. Actual apparent detail and usability depend on your telescope aperture, focal ratio, eyepiece choice, and observing conditions. The achromatic lens design reduces color fringing and helps maintain contrast when magnifying. Secure the eyepiece with the fixed screw to prevent movement during observation. This 3x Barlow lens is a straightforward, compatible option for users who need extra magnification from 1.25 inch eyepieces with improved color correction and a reliable locking mechanism.