Thermal Camera Lens Replacement – Step-by-Step Guide

Tools and Materials Needed

• Small knife / utility knife
• Precision screwdriver (matching the screw type)
• New lens and lens tube
• Anti-static gloves (optional but recommended to avoid sensor contamination)
• Lens cleaning cloth and alcohol (for cleaning lens or tube)

---

Step 1: Remove the Original Lens

1. Check how the lens is fixed:
   • In your case, the lens is glued in place.
2. Cut the glue carefully:
   • Use a small knife to gently score a circle around the lens where it meets the camera body.
   • Avoid pressing too hard to prevent scratching the lens or camera body.
3. Unscrew and remove the lens:
   • Once the glue is cut, rotate the lens gently clockwise or counterclockwise to unscrew it.
   • If the lens is stuck, you can slightly soften the glue with low heat (like a hairdryer on a low setting), but avoid high temperatures that could damage the sensor.

---

Step 2: Remove the Lens Mounting Tube

1. Locate the screws holding the lens tube:
   • Typically, there are four small screws securing the tube to the camera.
2. Unscrew carefully:
   • Use a precision screwdriver to remove the screws.
   • Keep track of the screws and any small parts—number or photograph them for easy reassembly.
3. Remove the lens tube:
   • Gently lift it off. Be careful not to lose any washers or spacers inside.

---

Step 3: Install the New Lens Tube

1. Align the new tube:
   • Make sure it lines up with the camera body and screw holes.
2. Hand-tighten screws first:
   • Insert all four screws lightly to ensure proper alignment, then fully tighten them.
3. Check stability:
   • Ensure the tube sits evenly and doesn’t wobble.

---

Step 4: Install the New Lens

1. Clean the lens and tube interface:
   • Use a lens cloth or alcohol wipe to remove dust or fingerprints.
2. Insert and secure the lens:
   • Place the lens into the tube and rotate or press it into position, depending on the lens mounting style.
   • If there is a locking thread, rotate clockwise until snug. Do not overtighten.

---

Step 5: Secure the Lens

1. Check the screws:
   • Ensure both the lens tube and lens are firmly in place and do not move.
2. Tighten all screws fully:
   • Secure the lens assembly to prevent any wobble.
3. Final check:
   • Make sure the lens sits flush with the camera body.
   • Test rotation and focus, if adjustable.
   • Power on the camera and check image clarity to ensure proper installation.

---

Additional Tips

If the new lens requires calibration or focus adjustment, follow the manufacturer’s instructions.

Wear anti-static gloves to protect the sensitive thermal sensor.

Avoid touching the lens surface directly to prevent fingerprints and smudges.

Handle screws and the lens gently—thermal camera components are delicate.