1. Ensure You Are Using the Correct Film Holder

• The Epson V850 Pro automatically detects the film holder inserted.
• For 35mm negatives, use the 35mm film holder, not the 120 medium format holder.
• If the 120 holder is still in place, the scanner might think you're still using medium format.

2. Restart the Epson Scan Software

• Close Epson Scan 2 (or Epson Scan if using an older version).
• Unplug the scanner from the power source and wait 30 seconds.
• Plug it back in and restart the software.

3. Check the “Document Type” in Professional Mode

• Open Epson Scan in Professional Mode.
• Ensure Document Type is set to Film (with Film Holder).
• If it’s still locked to Medium Format, proceed to the next step.

4. Reset the Epson Scan Settings

• Open Epson Scan.
• Click on Configuration (or "Settings").
• Look for a "Reset" or "Restore Defaults" button.
• Click it and restart the software.

5. Make Sure the Scanner Lid Is Fully Closed

• The V850 uses sensors to detect the film holder type.
• A slightly open lid can sometimes cause detection issues.

The Epson V850 can scan various types of media including prints, film (35mm, medium format, and large format), slides, negatives and documents.