Corner Pin Tool — drag to card edges · magnifier for precision · auto-grade
📸 Perfect Card Photo Guide
📐 POSITION Camera directly overhead · card flat on dark surface · all 4 edges visible · card fills 60%+ of frame
💡 LIGHTING Best: overcast window or lightbox · Flash OFF · no direct overhead bulbs · diffused light only
🔬 FOCUS Tap to focus · portrait mode OFF · keep phone steady · all 4 corners sharp
🃏 CHROME CARDS Scanner is best (enable 🖨️ Scanner mode) · camera: lights at 45° each side · tilt card 2-3° to avoid reflections
💡 Slab tip: lights behind you at 45° · north-facing window on overcast day = perfect
API Key
Front of card
🃏
Click or drop front
Back of card
🔄
Click or drop back
📷 Camera Capture
Position card so it fills the frame · All 4 corners visible · Card flat, camera overhead
Front captured
Not captured
Back captured
Not captured
📌 Pin the 4 corners of the card
Magnifier appears on hover
✨ Auto-detect finds corners automatically. Drag any pin to fine-tune — magnifier shows when hovering a pin.
After placing a pin: ← → ↑ ↓ = 0.15px · Ctrl+Arrow = 1px · Shift+Arrow = 5px · drag to move.
Slabbed cards: pin the card corners inside the plastic — not the slab edge.
Pinning: FRONT
📌 Pin the CARD corners (🔵 blue rect), not the slab
The card sits inside the clear plastic by several mm.
Use the 8× magnifier to zoom in and find the exact card edge.
Wrong: slab outer corners ✓ Right: card edge inside plastic
📋 What Claude will see — verify before grading
Front extraction
Pin 4 front corners first
Back extraction
Pin 4 back corners first
✓ Card should fill both frames edge to edge
✓ All 4 borders visible on each side
✓ No slab plastic or background included
✗ If any frame looks wrong — adjust pins and preview again
Results Tracker
Every grade auto-logged · Log PSA results to improve AI accuracy