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Bright halo / spot in pictures and videos

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Hi there !
I would like to know if some one have already met that kind of issues. I have a bright halo in some pictures and videos. It seems that it's related to where the sun is and the cam position. It's really annoying in videos. I have tested with both filters and can see the same problem. Should I try without them ?
What's odd is that it also seem to match the Inspire 1 shadow position on the ground. When it's close to the ground you can easily see it. I wonder if it's something reflecting from the quad structure laterally in the lens or ... ?
Any idea ? Thanks for your feedback :)




 
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I've seen this as well. Assumed it's lens flare happening where I was shooting either midday or slightly toward the sun.

Looks like in your shots, you are side-on to the sun.

You can see that in this video at 40 second mark

 
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Thanks for you feeback Jon, I can see clearly the exact same issue in the grass at 40 sec. Happy to read that am not the only one ;-) It's weird and can't be a kind of lens flare in my opinion. It should be visible when you face the source of light... Am really wondering if it's come from a reflection on the body/landing gears coming right on the side of the lense.
It's a real problem lowering shot quality....Will continue my investigations, thanks for other suggestions !
PS nice video !
 

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It's not unique to the Inspire - I have seen the same phenomenon on GoPro's slung from quads and hexacopters.

It is THE sun causing it and it appears when the sun is behind the craft.

I'm not actually sure how or why though!?!?! :confused:
 
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Hey,thanks for the feedback,good to know!
Am really curious to learn how it's happening... Because... if the only solution to avoid the effect is flying in a cloudy weather,my shot will be less sexy ;-/ it's sooooo visible when you have a grass field or continuons color on the ground. Green seems to be the color that 'highlight' it the most by the way.
 
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Just curious, but what kind of crops are in the photos? I plan on using the Inspire flying over fields in the Gulf Coast of Texas. Are these in Europe. Notice the controlled alley ways.
 
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Just curious, but what kind of crops are in the photos? I plan on using the Inspire flying over fields in the Gulf Coast of Texas. Are these in Europe. Notice the controlled alley ways.
Yes, that's in Europe, Switzerland. It's a corn field, the crops will be less visible in some weeks when the corn is higher ;-)
 

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Opposition effect - So now I know! Most noticeable on uniform fields of crops no less!

Makes sense, thank you :)
 
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Curious to know your row spacing on the corn? Seems it is very narrow row. I plan on surveying corn with Central pivot irrigation in our area of the Gulf Coast of Texas,

Last time I was in Switzerland, I never ran across much corn. What area of Switzerland?
 
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Curious to know your row spacing on the corn? Seems it is very narrow row. I plan on surveying corn with Central pivot irrigation in our area of the Gulf Coast of Texas,

Last time I was in Switzerland, I never ran across much corn. What area of Switzerland?
Sorry am not a corn field specialist but I know that everything is smaller in Switzerland ;-)
That's exactly there, in the french part of Switzerland, near Lausanne. https://www.google.ch/maps/place/46°36'06.8"N+6°36'15.8"E/@46.601897,6.604385,1008m/data=!3m2!1e3!4b1!4m2!3m1!1s0x0:0x0
You'll see that there is a lot of culture in this area.
 
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BTW, I've seen sun shields made to fit right on the threaded end of the inspire camera for sale that supposedly eliminate this. Basically this is a kind of lens flare, the lens is getting hit by the sunlight. Even a glancing blow from an acute angle can cause this. Inspire, go pro, all the action cameras are wide angle and susceptible. Lots to keep in mind when you set-up a shot.
 
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this is very interesting, it may well explain some things I have seen in the past when doing photogrammetry at the time of day when the sun is at its Zenith. This is an annoying thing to say the least, as for many jobs you want to fly when the sun is at its zenith to avoid shadows in the job.

I wonder if there is a fix we can invent for this?
 
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Am not sure that a sun shield would help in that case...(but am interested to get a link on the product). It has nothing to do with a lens flare obviously. The only thing I can imagine to counter the opposition effect is...post production. A pain for videos... other ideas ?
 
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How can you get a lensflare, when the sun is behind the camera ..? o_O
You can't, but that's not the case in the shots at the top of the thread or in my experience. Course with the sun directly behind you, you have to avoid placing a shadow of your craft in the shot.

It's got to be light bouncing around the lens elements from somewhere...

I'm going to do a little flying mid afternoon and put the camera at a few angles to the sun to see what happens. Get back to this thread soon
 
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Errrr.....guys, Don't waste your time trying to eliminate it (other than in post) because you won't.
It is not something that is unique to cameras, our eyes see it as well as it's just physics. It happens all the time but is only noticeable in certain situations - mostly on uniform crops due to the texture of the subject and acute angle of the crops causing reflected light to go off axis from our view point.
As light travels in straight lines (for the purposes of this phenomonen anyway) what we see in the world is made up of reflected light. (We Don't actually see any objects at all, only the light reflected from them)
In this scenario, when we view crops from above with the sun directly behind and at the same angle most of the light is reflected at angles off the crops which means what you see is very slightly darker. The bright spot is the light reflected in exactly the same plane as your viewpoint and angle and therefore very little of the light is lost in shadow/reflection. This then appears as a slightly brighter area from our viewpoint.
 
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