Walters Low Vision 4.2x10 Monocular with 2 Lock Rings

Summary

AI-generated from vendor-published content · October 1, 2026

This 4.2x10 monocular is a small, one-ounce telescope that makes distant things look bigger, such as signs, boards, or faces across a room. It focuses from far away down to about 9 inches, so the same unit can also help with close tasks. It is about 2 inches long and 7/8 inch across, with an 8.5 degree field of view. The two included lock nuts let it be set into a spectacle mount, and it can also be used in finger rings, hand grips, or spectacle clamps. These mounts are sold separately. The right monocular depends on a person's vision and what they need to see, so it helps to try it before buying.

Where to get it

This is the vendor WhatCanHelp tracks for this product — it may also be available from other retailers or a local supplier, and prices vary.

What setup looks like

• Out of the box
  Hold the monocular up to your eye and turn the focus to sharpen the view, from far away down to about 9 inches.
• With a guide
  
  1. To use it hands-free, fit it into a spectacle mount, finger ring, hand grip, or spectacle clamp using the lock nuts. Those mounts are sold separately.
  2. Practice finding and holding a target with the monocular in short sessions, since a narrow field of view takes some getting used to.
• With professional help
  A low vision specialist, optometrist, or occupational therapist can check that this power fits your vision and daily tasks. They can also help choose a mount and train you to use it, usually in one or two visits.