MegaView Pro Lighted Magnifier Headset with Three Lenses and single eye lens(4X)
| • 3 Binocular lenses (2.0x, 2.5x, 3.0x) and a 4x monocular lens supplied. Each binocular lens id color-coded. The working distance of each lens is suggested by table. Working distance decreases as the magnification increases. Just find your best position as focus depends on individual sight and on if eyeglasses are worn or not. For many close-ups, you may use 2 lenses in combination.
• 2.0x lens Blue Line 20-30cm
• 2.5x lens Green Line 15-25cm
• 3.0x lens Non-colored 10-15cm