Calculate magnification and apply Barlow lens adjustments
Calculate magnification using telescope and eyepiece focal lengths. Input values in millimeters. Include 2x to 5x Barlow lens options. Perform calculations for amateur and professional astronomers. Display results directly.
Convert units across 14 categories including length, weight, and temperature. Switch between metric, imperial, and Chinese traditional systems. Customize display formats and save frequently used conversions.
Create printable reference sheets by adding grids, rulers, and composition overlays to images. Adjust settings for precise scaling. Export as PDF for accurate 1:1 measurements and print-ready layout.
