Adequate light levels are needed for a broad variety of activities, including reading various qualities and types of print, and working on detail-oriented tasks. Brightness levels also contribute to the perception of spaciousness, as well as to the overall visual appeal of illuminated spaces. Targeted task lighting can provide the necessary amount of light at workspaces without over-illuminating ancillary spaces; ambient light levels of 300 lux are sufficient for most tasks. Pairing adjustable direct task lighting with indirect or diffuse ambient lighting allows user customization and good visual acuity while providing more suitable background light. Light intensity for visual acuity is measured in lux (or foot candles), which is a measure of the way the eye responds to light weighted to the response of the cone cells—the main photoreceptors for daytime vision, located on the retina of the human eye.

I’ve seen this happen sometimes. Often, it will correct itself. To push it along faster, try power cycling the camera and see if that helps reset the connection with the server to showing the thumbnails correctly again.

Another thing that can help is to clear the cache from the app to force it to pull everything fresh from the server again. Go to the account tab, then app settings and select clear on the right side of the cache file size.

The Dining Services Ergonomic Design Guidelines recommends lighting levels between 70 and 100 foot candles in warewashing areas for the safety and wellbeing of foodservice employees.

Why is one of my three v3s suddenly just showing a camera icon instead of a video thumbnail in my list of Event Notifications?

Lightforvisualartists PDF Reddit

ANSI/IES RP-1-12 provides Table B1 for recommended maintained illuminance targets for the horizontal plane. Table B1h recommends a target value of 150 lux for cafeterias.

Oh yes, my apologies, I originally read that over a week ago and have read several hundred posts since then. For some reason when I did a quick scan to remind myself what we discussed, I missed that we talked about the Firmware already and I thought we had only discussed an app update in this thread. I don’t know how I missed that.

ANSI/IES RP-1-12 provides recommended luminance ratios for offices. It notes that for ceiling luminance ratios, 10:1 is the maximum acceptable ratio.

American National Standards Institute and Illuminating Engineering Society of North America. American National Standard Practice for Office Lighting. New York, NY: Illuminating Engineering Society of North America; 2012. RP-1-12.

Ontario Ministry of Labour. Computer Ergonomics: Workstation Layout and Lighting. Toronto: Ontario Ministry of Labour; September 2004: 16.

We should submit this into the next Fix It Friday event on October 6th then since it sounds like multiple people are experiencing this and it’s not an isolated incident.

LightforVisualArtists PDF

You could always try doing a manual “flashing the firmware” to the newest version early, or try flashing back to an older version and see if that changes it

To support visual acuity by setting a threshold for adequate light levels and requiring luminance to be balanced within and across indoor spaces.

I have one camera with the same issue. No picture just camera icon on the first screen. I have iOS as well and yes I have tried all the above suggestions to no avail.

U.S. General Services Administration (GSA). Lighting. 2003 Facilities Standards (P100). 2003 ed. Washington, DC: General Services Administration Public Buildings Service; 2003. http://www.gsa.gov/portal/content/101308. Reviewed July 2, 2014. Accessed October 30, 2014.

There is an IOS update 16.6.1 if you don’t have it yet. It might not fix the thumbnail problem, but it will make your iPhone more secure. Worth a try.

Interesting. Maybe it is something in the App then. Though, then it is weird that it is only happening on one camera. Are you using the main production app, or the test flight beta app?

I have thumbnail pictures on all of my Event List videos. Here is my App version and v3 firmware versions if you want to try to roll back. Also, I am using CPL in case this is an issue with Cam Plus.

In light of the fact that this is still happening, is there anything else you can suggest? Other than this nuisance issue, everything else seems to be functioning normally but it’s still less than ideal. Do I have any recourse other than to replace the camera, if that would in fact even resolve the issue?

However, as far as options go, the rest of my comment is still applicable: you could still try flashing back to a previous version and see if that makes a difference. If it fixes it, then that might be a sign to us that the problem could be related to the newer firmware versions. Either way, you can always update back to the newer firmware at any time.

ANSI/IES RP-1-12 provides recommended luminance ratios for offices. It notes that studies suggest that ratios do not exceed 10:1 or 1:10 between a task and a remote surface.

ANSI/IES RP-1-12 provides Table B1 for recommended maintained illuminance targets for the horizontal plane. Table B1h recommends a target value of 100 lux for casual dining and 200 lux for fast food dining.

I guess it’s worth mentioning that it started happening right after I updated the software on my iPhone 12 to 16.6 a few days ago. I bet you thought I was going to say, after my last Wyze firmware update. The fact that only one v3 was affected leads me to believe it’s just a coincidence and not related to iOS 16.6. With that said, I was hoping the Wyze firmware update (4.36.11.5859) would correct it but it hasn’t. Hopefully, it will eventually correct itself but in the meantime you can be sure I’ll be repeating the power cycling exercise more than once.

Thanks, I’ve already tried both of those things to no avail. Like I said, it’s only happening on one of my three v3s and it’s sporadic. Sometimes the video thumbnail appears and sometimes not but in either case the video is there and plays fine.

Lightvfx free

I don’t currently have any other ideas off the top of my head, but I just woke up from working late. If something comes to mind I’ll post again. Maybe we’ll get another insightful person to offer ideas too.

ANSI/IES RP-1-12 provides Table B1 for recommended maintained illuminance targets for the horizontal plane. Table B1h recommends a target value of 30 lux for fine dining.

Are you referring to version 4.36.11.5859 (August 30, 2023) which is what I’m running now (as I mentioned earlier) or is there another one rolling out?

University of California, Office of the President. Dining Services Ergonomic Design Guidelines. http://www.uhs.berkeley.edu/facstaff/ergonomics/pdf/DiningDesignGuidelin.... Published May 2012. Accessed October 30, 2014.

ANSI/IES RP-1-12 provides recommended luminance ratios for offices. It notes that studies suggest that ratios do not exceed 3:1 or 1:3 between a paper task and an adjacent visual display terminal.

The Ontario Ministry of Labour's "Computer Ergonomics: Workstation Layout and Lighting" provides a checklist for computer workstations, which includes checking that light levels fall within 300-500 lux, and also that task lights are provided if required.