Inspecting & Grading Supplies
When you submit your cards to PSA for grading, they don’t just scan the cards with their naked eye to determine what condition the cards are in. Instead, they use tools like magnifying lamps, jewlers loupes, and lights.
Magnifing lamps are used to inspect card surfaces and card centering fast and efficiently. Generally, a magnifying lamp will magnify your vision 2X – 3X. Which will allow you to see minor scruffs, scratches and stains your naked eye can’t see.
A jewlers loupe is used when the grader needs to really investigate a corner or a scratch. These puppies magnify your vision up to 30x. Some have black lights installed that allow you to pick up on any staining or discolorations.
If your a vintage card collector, your should definitely have a black light in your arsenal. They pick up on yellowing, staining and discoloration of the card surface. For older cards these work great because PSA will surely deduct from your overall grade if your card has stains on the surface.