DMX_MT
First Officer
Malta
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Sunny_German Posted at 2018-7-9 01:40
I've already watched a lot of videos. Especially about setting in the DJI Go app. However, I do not understand the whole, maybe someone can help here !? I put on a ND 16 filter and set the shutter to 1/60, unfortunately, the picture is totally overexposed although I have the ISO value to 100. Can someone help please? I'm still a beginner. Sorry for my bad English, but I leave the translation of an app{: 4_143:}
Hello Sunny German,
@Gunship9 is right. What happens is this -
When you have lot of light, the camera reduces the time of the shutter speed, making it a faster open and close to let in less light, so that the image will not be over exposed.
The Aperture of the Spark cannot be Adjusted, the Shutter Speed will be Predefind by you for Motion Blur, lets say 1/60 (till 1/100 you still get motion blur but don't exceed 1/100 as you video will start looking choppy) so many use ND Filters to overcome the Problem of Over Exposure.
Now with the ND Filters, you are putting a type of Tint, imagine a Sunglasses, to reduce the light coming in the lens. As you are setting a Pre Defined Shutter Speed which is 1/60 meaning 60th of a Second, you are letting more light coming in the lens to obtain the Motion Blur for Videos, coz thats the main idea unless you do as SparkBird does with his Mavic and take Photos with Motion Blur of Rivers Flowing, to get that Smoothy Motion.
Now if you have a lot of light you must test and increase the ND Filters Accordingly.
For my Spark I have -
ND 4 - Almost No Filter / Little bit of tint to use only as a Protector or when there are lots of Clouds
PL ND 8 - To use when you just need some little tint as there is Not so much Sun but more Clouds during the Day
PL ND 16 - To use in Partly Sunny / Cloudy Days
ND 32 - To use on Really Sunny Days
There is also ND 64, and I think I read also ND 1000 which is almost a total block out used for Long Exposures.
So the Idea behind is that the more Sun and Light there is, you use an ND Filter with a Greater Number which means a Greater Tinted Glass to let less light in.
The Best ND Filters / Polarizer Brand is Polar Pro, most expensive but the Best you can buy till now.
If I wasn't clear don't worry as sometimes a Video helps more than words. Feel free to ask me anything.
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