Surface Analysis
Surface Pitting The Hidden Chrome Killer
It is invisible to the naked eye, but it is the #1 reason modern cards get a PSA 9.
Surface pitting is the most commonly missed flaw by human collectors. Why? Because you are looking at the card "straight on." To find pits, tiny microscopic holes in the foil finish, you have to think like a photographer.
1. The 'Raking Light' Technique
Graders don't just look at a card; they tilt it. This is called "raking" the light.
How to Rake Light
- Turn off the overhead lights in your room.
- Use a single, harsh light source (like your phone flash).
- Hold the card flat.
- Lower your light source to a 15-degree angle relative to the card surface.
Result: The pits will cast long shadows, revealing them instantly.
2. The Chrome Epidemic
Why is this happening more in 2026? Modern cards, especially Panini Prizm and Topps Chrome from 2019-2023, used a specific metallic coating that is prone to "acid pitting."
- Factory Bubbles Tiny air bubbles trapped in the laminate pop during cooling, creating a crater. This is a factory defect, but it still counts against your grade.
- Humidity Pitting Storing Chrome cards in humid attics allows moisture to eat into the metallic layer over time. Always use silica gel packs!
Scan for Pits
Our AI uses Fourier Transform IR simulation to detect surface irregularities that the human eye misses. Don't guess.
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