What Magnifier Strength Do I Need for Shooting Glasses? (Simple Diopter Guide)

If you've started holding your phone at arm's length or squinting to read your range card, you already know the problem: your eyes need a little magnification up close, but you still need sharp distance vision to see your sights, scope, or target. Bifocal shooting glasses solve exactly that — but only if you pick the right magnifier strength. Here's how to nail it.

The quick answer

Magnifier strength is measured in diopters, usually from +1.25 to +3.00. The higher the number, the stronger the magnification. Most shooters and hunters land between +1.50 and +2.50, but the right number depends on your eyes and how far away the thing you need to see clearly is.

The 2-minute at-home test

You don't need an eye exam to get this right. Do this simple test:

1. Head to any drugstore or pharmacy that sells reading glasses ("readers").
2. Hold up whatever you need to see clearly while shooting — your front sight, a range card, or your phone at the distance you'd actually use it.
3. Try readers in increasing strengths (+1.25, +1.50, +1.75, +2.00…) until that object snaps into sharp focus without blurring your distance view too much.
4. That number is your diopter. Order your Spits bifocals in the same strength.

Tip: if you're between two strengths, go with the lower one — it keeps a wider zone of comfortable focus.

Common strengths by use

• +1.25 – +1.50: Light correction — reading gear labels, seeing iron sights for younger eyes.
• +1.75 – +2.25: The sweet spot for most shooters 45+ — front sight focus, range cards, scope adjustments.
• +2.50 – +3.00: Strong magnification — fine detail, reloading, close bench work.

Top bifocal or bottom bifocal?

This is the part most people get wrong. The magnifier segment can sit at the top or bottom of the lens:

• Top bifocal ("top focal"): Best for rifle and pistol shooters who raise the gun and look slightly up toward their sights or scope. The magnifier is right where your sight line goes.
• Bottom bifocal: Best for reading range cards, ballistics apps, and gear while keeping your straight-ahead distance view clear — the classic reading-glasses position.

Our C2 Bifocal Shooting Glasses come in both top and bottom configurations, so you can match the magnifier to how you actually shoot.

Bifocal vs. full magnifier

If you want magnification across your entire field of view — no hunting for the bifocal "sweet spot" — go with a full magnifier instead. Our best-selling Mag-Safe Full Magnifier Safety Glasses put edge-to-edge clarity in front of both eyes, which many hunters and hobbyists prefer for detail work and glassing.

Ready to see clearly downrange?

Every pair of Spits shooting eyewear is ANSI Z87.1+ rated for impact protection, with anti-fog, UV400 polycarbonate lenses in clear, smoke, and yellow tints. Find your strength and shop by style:

• C2 Top & Bottom Bifocal Shooting Glasses
• MAGshot Magnifying Hunting & Shooting Glasses
• Mag-Safe Full Magnifier Safety Glasses
• All Hunting & Shooting Glasses

Still not sure? Order two adjacent strengths, test them in the field, and keep the one that works — clear sights make every shot count.