In fact, the ND (Neutral Density) filters are the most useful filters these days from the drone pilots. The major questions are – “When is appropriate to use them?” and “Why we need them?”. You have probably already bought some of them. They look like sunglasses for your camera.
Drone ND Neutral Desity Filters - Why and when to use them
Why we need them?
The ND filters have only one purpose – they allow you to set the correct shots of speed. They give you the appropriate motion blur in between each frame. They help you to create that cinematic lookup of the images that we see on the television or in film. That is the only purpose of the Drone ND filters. They don’t improve your footage in some way. They don’t allow you to put your camera to the Sun and to have the nice light balance or something like that. They allow you a correction of the speed to get the correct motion shot without any blur. So here are the values with which the blur is appearing- 25 FPS ; 1/50 Shutter without ND Filter. But with 1/800 there is now even a sign of any blur. Let’s talk about a little about the options we can change. We can change the Aperture, you can change the ISO and the Shutter Speed. In fact when we talk about drones – our Apperture is fixed. We can not touch it. This is the fabric size of the hall in the camera that the light is coming in. And it is open. A lot of Sunlight is fluting in. And that is. Te next is ISO= When you rise up the value of the ISO – the sensitiveness of sense of the light and when you increase it – there are many noises coming in the image. So with other words – you can touch it. So we have one last puler to the controller when it comes to exposure – The Shutter Speed. Conventionally the tips are that if you want motion in your shot- you have to set “1080 rule” the witch says- “Use 25 Frames per Second. And for Motion – you have to double the Shutter.” That brings this – 25 FPS = 1/50 Shutter. If you are filming with 50 FPS, you will need 1/100 Shutter. That means the time when the shutter is open in seconds for taking the image. Here, you probably realize that if you go on some sunny day and want to shoot, there is absolutely no chance to shoot with 1/50 shutter. Because too much light will come inside and the result definitely will disappoint you. You have to raise the shutter to 1/100 or 1/200 or whatever it is. And this is the problem. Because that doesn’t allow you to achieve the correct motion blur. Or in other words – in this case, we need ND Filters. They will achieve all of what we need.
And after that comes the question - When to use Drone ND Filters?
You can say ” I can use them all the time because I always want the correct motion blur”. And you will have the right. But this is valid for the static camera first of all. When we are talking about drone footage, we can say things are slightly different. Think about if your drone is 300 feet up in the air and you are taking a lot of shot of landscapes, and there is no any movement in the ground, no movement in the shot and all you are doing is flying straight ahead slowly – there is no motion in fact. There is absolutely no difference do you have ND Filters or not because there is no blur. There is no difference is your shots were taken with 1/100 or 1/30 Shutter. We are trying to show you that usage of ND Filters depends on what you will shoot. If you are planning to shoot some moving elements or objects and you know this before taking your drone up in the sky – then you can put the proper ND filters and the footage will be great. It is all about a little planning of your drone footage.
And now, when you already know When and Why to you ND Drone Filters, you may want to test them at the minute. But we remind you to be aware of the Drone regulations and laws for the place where you will fly your drone.
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