| Issue | Likely Cause | Fix | |-------|--------------|-----| | | Over‑exposure or insufficient compensation | Under‑expose by ¼ EV; use a neutral density filter in bright light | | Color shift (green/blue) | Incorrect temperature or stale chemicals | Verify 38 °C throughout; replace chemicals after 6 months | | Grainy negatives | Under‑development or low‑temperature developer | Ensure developer temperature is stable; increase development time by 10 s | | Streaks or scratches | Dust during drying or scanning | Use a dust‑free drying rack; apply anti‑static spray before scanning |
