Canon Community Canon Community
 


Reply
Occasional Contributor
Posts: 10
Registered: ‎05-21-2017

Strange light streaks with long exposure EOS 80D

Maybe this is a technical issue or something else but I can't figure it out.

 

I have noticed that when I shoot long exposures with my new 80D that some car lights give a wobbled look or a wavy pattern, is this normal?  Is this just a new style of car light that is making that??

Check the below photo for a reference to what I mean, the camera is not shaking but the lights seem strange.

Screen Shot 2017-05-21 at 6.03.28 PM.png

 

Screen Shot 2017-05-21 at 6.06.10 PM.png

 

Let me know what you guys think or if you know let me know :-)

Thanks!
Andy

Esteemed Contributor
Posts: 3,807
Registered: ‎06-11-2013

Re: Strange light streaks with long exposure EOS 80D

The waving pattern looks sinusoidal - not digital.  My guess is your camera was physically vibrating.  Was your tripod set up on a bridge (or anything that could vibrate)?  Was it windy and your tripod was vibrating?  

 

 

 

 

Tim Campbell
5D III, 5D IV, 60Da
VIP
Posts: 8,038
Registered: ‎08-13-2015

Re: Strange light streaks with long exposure EOS 80D

[ Edited ]

That is peculiar looking.  Need more info to give you an intelligent explanation. 

 

What shooting and focusing modes?  What lens were you using?  I assume that you were using a tripod, so did you turn off the IS in the camera because it was sitting on a tripod?

 

If were taking a shot like that, I would have used Av mode, One Shot mode, and turned OFF any Image Stabilization in the lens because the camera was on a tripod.

----------------------------------------------------------------------------------------------------------------------------------------------------------

"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Occasional Contributor
Posts: 10
Registered: ‎05-21-2017

Re: Strange light streaks with long exposure EOS 80D

To reply to 

Occasional Contributor
Posts: 10
Registered: ‎05-21-2017

Re: Strange light streaks with long exposure EOS 80D

To relpy to Waddizzle Here is some more info on how it was shot.

ISO 100, 50mm Plastic fantastic on manual focus mode, F5.6, 2 second exposure in Manual mode on the camera.

The lens has no image stabilization and correct me if I'm wrong but there isn't any IS in the camera is there?


VIP
Posts: 8,038
Registered: ‎08-13-2015

Re: Strange light streaks with long exposure EOS 80D


@Andydreadsbmx wrote:

To relpy to @Waddizzle Here is some more info on how it was shot.

ISO 100, 50mm Plastic fantastic on manual focus mode, F5.6, 2 second exposure in Manual mode on the camera.

The lens has no image stabilization and correct me if I'm wrong but there isn't any IS in the camera is there?



No, there is no IS in the camera.  I misspoke there.  I was thinking of turning off AI Servo Mode in the camera, not IS.

----------------------------------------------------------------------------------------------------------------------------------------------------------

"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Occasional Contributor
Posts: 10
Registered: ‎05-21-2017

Re: Strange light streaks with long exposure EOS 80D

Doesn't that seem weird though, its like the lights were moving back and forth.
Esteemed Contributor
Posts: 3,807
Registered: ‎06-11-2013

Re: Strange light streaks with long exposure EOS 80D

Depending on the beefyness of the tripod, just touching the shutter button can induce some vibration (even if there's no wind or anything else).  

 

If you have a smartphone, you can link the phone to the camera so the phone becomes the shutter trigger, or use an IR or wired shutter release, or just set the self-timer on the camera (e.g. 10 second countdown ... although the 2 second countdown may be enough to allow the vibrations to settle) and see if that makes a difference.

 

Canon image stabilization is always a feature of the lens - so there's no in-camera image stabilization in the 80D itself.  

 

But some (and this was particular true of older lenses) image-stabilized lenses would get into a feedback loop if the image stabilization was turned on when the lens was used on a tripod.  Newer lenses with image stabilizations are clever about detecting that they're on a tripod so they don't get into that feedback loop.

 

But as this was a 50mm lens (no IS feature) that wouldn't be an issue.

 

Tim Campbell
5D III, 5D IV, 60Da
VIP
Posts: 8,038
Registered: ‎08-13-2015

Re: Strange light streaks with long exposure EOS 80D

The car lights almost look as if they were strobing ON and OFF, but I find it unlikely that every vehicle in sight of the camera has solid state LED lights.  The shots are somewhat out of focus, BTW.

----------------------------------------------------------------------------------------------------------------------------------------------------------

"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Occasional Contributor
Posts: 10
Registered: ‎05-21-2017

Re: Strange light streaks with long exposure EOS 80D

I know both of you are probably going to say "well there is your issue" but do you think it could have been because I was shooting a timelapse and the shutter opening and closing along with being on a tripod created this issue?

Here is the full shot just for reference.

LA light issue-1.JPG

powered by Lithium

LIKE US on Facebook FOLLOW US on Twitter WATCH US on YouTube CONNECT WITH US on Linkedin WATCH US on Vimeo FOLLOW US on Instagram SHOP CANON at the Canon Online Store
© Canon U.S.A., Inc.   |    Terms of Use   |    Privacy Statement