The Model LT-10 11.5x Lighted LinenTest from Carson Optical is a compact, fold out loupe magnifier featuring 11.5x power. Dual lens design ensures a clear, distortion-free view. The included LEDs illuminate the fine detail you are trying to examine. Subtle changes in focus can be obtained by using the focus wheel. The reticle is marked in both inches and centimeters. Folds flat when not being used.