Specs Frame Size Chart: My Simple Breakdown
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Specs Frame Size Chart: My Simple Breakdown
When I first looked at a specs frame size chart, I was confused by all the numbers and diagrams. Here's how I finally made sense of it all.
The Basic Three Numbers
Every pair of specs has three key measurements printed inside, like „52-18-140“:
52 - Lens width in millimeters 18 - Bridge width in millimeters 140 - Temple length in millimeters
Why These Numbers Matter
Each measurement affects fit differently:
Lens width - Determines if frames look proportionate on your face Bridge width - Affects comfort on your nose Temple length - Ensures arms reach properly behind ears
How I Use Size Charts
My process is simple:
Find specs I own that fit well Write down their three numbers Look for new specs with similar measurements Stay within 1-2mm of my ideal size
Common Size Ranges
Most specs fall into these categories:
Small: 48-50mm lens width Medium: 51-54mm lens width Large: 55mm+ lens width
My Key Takeaway
Once I understood what the numbers mean, size charts became incredibly useful. They're not complicated - just three simple measurements that ensure proper fit.