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Help With White Balance Flicker


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#1 laughoutloudj

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Posted 10 August 2016 - 12:50 PM

I have been getting back into timelapses, but having trouble with white balance flicker for some sunset shots. Sometimes the white balance seems to freak out on random frames for a split second and not sure how to correct for it. Any tips on how to correct with Canon gear? Thanks!

 

Canon 6D, Rokinon 14mm fully manual lens, I preset the focus, lock down on a tripod, evaluative metering, set to f2.8, manually set white balance to something like 3100k, set timer for a shot every second. Tested with an example (don't mind the frame rate issue for the first few seconds) https://www.instagra.../p/BH1p0phByk0/



#2 elcab18

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Posted 10 August 2016 - 03:17 PM

Can't help you with the flicker issue but the video is very cool, nice work!

Doug


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#3 laughoutloudj

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Posted 10 August 2016 - 03:28 PM

Can't help you with the flicker issue but the video is very cool, nice work!

Doug

 

Thanks! Ya it has been bugging me randomly for a while. Trying to play around with the metering, but not having any luck.



#4 Bill Peppas

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Posted 10 August 2016 - 06:28 PM

Since you've manually set the White Balance to a specific value it shouldn't change nor be the cause of your issues.

 

How are you doing the Exposure Ramping during the sunset ?

The blame is there most likely.



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#5 laughoutloudj

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Posted 10 August 2016 - 07:13 PM

Since you've manually set the White Balance to a specific value it shouldn't change nor be the cause of your issues.

 

How are you doing the Exposure Ramping during the sunset ?

The blame is there most likely.

 

Right now not doing any ramping or bracketing on purpose that I can tell. Just have the camera in manual mode and have an external, cheap timer connected. Just occurred to me it might be something in the MP4 render process so I will investigate that.
 



#6 Bill Peppas

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Posted 10 August 2016 - 07:33 PM

I would start by checking the source files ( individual frames )



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#7 PeterPP

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Posted 11 August 2016 - 12:14 PM

LRTimelapse wiil handle much of those issues, rather common ones unfortunately.  http://lrtimelapse.com/

Unfortunately even the personal use license is on the expensive side at 99.00 

There is a trial version that is very limited on the number of frames it will allow you to process at a time, max 400 I believe and it only does 1080P

The pro version will output up to 8k video.

It needs Adobe Lightroom, Bridge or Camera Raw installed to work.

 

And qDSLRdashboard has a feature to work with LRTimelapse where it can be set to automate the image taking process.

http://dslrdashboard.info/downloads/

Free for use on Windows or OSx machines, controls your camera through a USB cable or wifi.

 

qDLSRDashboard takes the images, LRTimelapse batch processes them and renders the video.

 

The LRTimelapse site has some interesting demos and tutorials on it.

 

BTW what you are trying to shoot actually has a name in the TimeLapse world, 

It is called "Shooting the Holy Grail",

http://lrtimelapse.c.../dslrdashboard/

 

Have fun, I sort of gave up on it when I found how much they wanted for a commercial use license.


Peter
 


#8 TrailEx

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Posted 15 August 2016 - 10:10 AM

Another good timelapse program that I've used several times to great effect is Panolapse. You can buy it for about $90 and I believe will work similarly to the full priced version of LRtimelapse (except that it will not plugin to LR). Or you can download it for free and you only lose the ability to process RAW files and can only output 720p videos. The "neato" feature of panolapse is that it can create a panning effect in your timelapses, even if they were originally static. It also has a deflicker function that should fix your problem if its in the source files. http://www.panolapse360.com/

If you really want to see some examples, you can check out my Instagram page. You can find the link to that in the Instagram thread. (shameless self-promotion I know...but that's offset by not putting a link here, right? )






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