"Linen tester," a convenient magnifying glass for inspecting fabrics and printed materials. 25mm & 1-inch scale magnification: 10x double lens.
A linen tester is a magnifying glass originally designed to inspect the weaving of fibers (linen), but it is also convenient for quickly inspecting flat items (such as printed materials). It can be folded small enough to fit in your pocket, making it recommended for those looking for a portable magnifying glass for simple inspections of flat objects. The scale includes both millimeter and inch markings on one side. The millimeter scale is in 1 mm increments, while the inch scale is in 1/8 inch increments. It features a focus adjustment function and uses double lenses to minimize distortion around the edges.
**Difference Between Single Lens and Double Lens**
Compared to a single lens, a double lens reduces distortion around the edges. When viewed with the eye close to the lens, there may not be much difference, but as you move your eye away, the difference becomes apparent.
- Company：池田レンズ工業
- Price：10,000 yen-100,000 yen
