What is eye relief?

Eye relief is the distance between the rear lens of an optical device, such as a rifle scope or binoculars, and the eye of the viewer. It is important for providing a comfortable viewing experience, especially for those who wear glasses or have limited eye mobility.

Having sufficient eye relief helps prevent eye strain and discomfort during extended use. It also helps maintain a clear, full field of view without any distortions or black shadows around the edges.

The ideal eye relief distance can vary depending on the type of optical device and the individual user's preferences. Most rifle scopes have a standard eye relief of around 3-4 inches, while binoculars typically have a longer eye relief of 15-20mm.

When selecting an optical device, it is important to consider the eye relief distance to ensure a comfortable and enjoyable viewing experience. Some higher-end models may offer adjustable eye relief to accommodate different users and preferences.