Night Owl Cameras Show Purple Tint at Night? How to Fix
- IR cut filter is partially stuck
- Lens window has reflective contamination
- Low light white balance drift
Problem Description
A purple tint at night usually means the camera IR cut filter is stuck or white balance has failed after low-light mode transition. Image detail drops and faces become hard to identify until night mode switching is corrected.
Symptoms
- Night image has purple or pink cast
- Daytime image looks mostly normal
- Tint appears after sunset transition
- One camera is affected while others are normal
- Infrared mode does not switch cleanly
- Color issue returns after reboot
Recognize these? Here's what usually causes it.
Common Causes
- IR cut filter is partially stuck
- Lens window has reflective contamination
- Low light white balance drift
- External lighting confuses night mode
- Camera firmware has night mode bug
- Aging sensor module in affected camera
Most fixes happen in the first 3 steps.
Avoid aiming cameras directly at reflective metal or glass at night. Reflection can trigger false color behavior and poor IR contrast.
Tools & Requirements
These tools will help you complete this fix.
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Step-by-Step Solution
Confirm issue is limited to low light mode
Check camera image during daylight and after dark. If purple tint appears mainly at night, focus on IR mode behavior instead of general signal path. Compare with another nearby camera for baseline color behavior.
Clean lens and protective glass
Use a microfiber cloth to remove dust, moisture film, or residue on the lens cover. Surface contamination can scatter IR and create abnormal color cast in low light. Retest after cleaning before changing advanced settings.
Needed for this step
BELLEMOND「Samurai Cloth」Japanese Microfiber Cle...
$18.99Cycle day and night mode manually
In camera image settings switch temporarily to day mode, then back to auto or night mode. This can free a partially stuck IR cut transition on some models. Watch for audible click and verify color improvement immediately.
Reset image tuning and update firmware
Restore image parameters such as white balance, exposure, and color to defaults. Then apply current firmware update from support source. Reboot camera and recorder path to reload night mode control logic cleanly.
Replace failing hardware when persistent
If purple tint persists on one camera after cleaning and firmware refresh, IR filter hardware is likely failing. Replace the affected camera to restore low-light evidence quality and avoid unreliable nighttime identification.
Quick Solutions
Still having issues? This is usually the deeper cause below.
Camera issues that start suddenly almost always trace back to an upload bandwidth drop — run a speed test before assuming hardware failure.
Add a short night test walk after every camera update to verify usable facial detail before relying on alerts.
Live view problems that start suddenly usually trace back to an upload speed drop — the camera itself is fine, the bandwidth path to the cloud isn't.
- IR cut filter is partially stuck
- Lens window has reflective contamination
- Low light white balance drift
- External lighting confuses night mode
- Camera firmware has night mode bug
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
Night Owl Security provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your Night Owl Wired and Wi-Fi Cameras.
Source: support.nightowlsp.com
Need More Help? Night Owl Security Support
Note: The contact information below connects you directly to Night Owl Security's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
