Work is scheduled for Times Square this weekend

[Lord G]

I noticed an arc that appears in the upper right and upper left corners of the Cam 4 image at night.  It disappears in daylight.  Here's a movie from pre-dusk today that shows the effect:
(movie)

My first thought was that this was an optical effect from the IR illuminators, either the ones in Camera 4 itself, or possibly one of the nestbox cameras reflecting IR light off the lens of Cam 4.  The problem with that theory is that the arc appears to move, not only in and out of the frame, but also toward and away from the camera.  It never appears to be sharply in focus, so I thought may be it was a spider web of some kind, but nothing of the sort appears in the daylight shots.

So, would anybody care to weigh in with their theory as to what we might be seeing here?

[Donna]

I noticed it also during the night hours and thought it was a cable/wire....guess not. Never thought to post it. Curious now!

[Shaky]

I posted on another topic a close up of Camera 4 taken from Main Cam. I can't see any spider webs.

[Donna]

Obviously there are no wires or cables....hmmm

[suem43]

A piece of Jim's hair that got caught on the camera lens and blew away by morning??

[Carol P.]

Maybe it has something to do with the lights on the Times Square bldg.

[Donna]

A piece of Jim's hair that got caught on the camera lens and blew away by morning??

 

[Dumpsterkitty]

I noticed an arc that appears in the upper right and upper left corners of the Cam 4 image at night.  It disappears in daylight.  Here's a movie from pre-dusk today that shows the effect:
(movie)

My first thought was that this was an optical effect from the IR illuminators, either the ones in Camera 4 itself, or possibly one of the nestbox cameras reflecting IR light off the lens of Cam 4.  The problem with that theory is that the arc appears to move, not only in and out of the frame, but also toward and away from the camera.  It never appears to be sharply in focus, so I thought may be it was a spider web of some kind, but nothing of the sort appears in the daylight shots.

So, would anybody care to weigh in with their theory as to what we might be seeing here?

Well, the effect on the upper left doesn't seem to move like the one on the right and it appears to then be a dark area upper left in the daylight.  I'm wondering if that is the cam visualizing the hood over the lens, catching the IR light at night.  Perhaps the one on the right is a reflection of the Times Square lights on the right side lens hood.

[Donna]

I noticed an arc that appears in the upper right and upper left corners of the Cam 4 image at night.  It disappears in daylight.  Here's a movie from pre-dusk today that shows the effect:
(movie)

My first thought was that this was an optical effect from the IR illuminators, either the ones in Camera 4 itself, or possibly one of the nestbox cameras reflecting IR light off the lens of Cam 4.  The problem with that theory is that the arc appears to move, not only in and out of the frame, but also toward and away from the camera.  It never appears to be sharply in focus, so I thought may be it was a spider web of some kind, but nothing of the sort appears in the daylight shots.

So, would anybody care to weigh in with their theory as to what we might be seeing here?

Well, the effect on the upper left doesn't seem to move like the one on the right and it appears to then be a dark area upper left in the daylight.  I'm wondering if that is the cam visualizing the hood over the lens, catching the IR light at night.  Perhaps the one on the right is a reflection of the Times Square lights on the right side lens hood.

Kinda like the same effect as when you get a piece of glitter on your eyelash...you see the dancing orbs.

[Shaky]

It looks like it's time for a science experiment. Head over to the streaming video page and watch Main Camera zoom in on Camera 4.

[Shaky]

It looks like it's time for a science experiment. Head over to the streaming video page and watch Main Camera zoom in on Camera 4.

The results are in. It looks like a hair in front of the lens. Look between the red lines in the attached photo.

[Carol P.]

It was getting a little hairy there.  Thank goodness for maincam, super snooper.   

[Lord G]

Huh.  How about that.  I guess hair shows up brightly under IR illumination...

Guess we'll have to clean that up when we install PanCam.

[Carol P.]

Huh.  How about that.  I guess hair shows up brightly under IR illumination...

Guess we'll have to clean that up when we install PanCam.

I think we'll need to do a DNA test on it.   

[Shaky]

Send up the CSI team. I think their new headquarters is only a block away.

While they're up there they can fix the leaky roof.