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You have probably already seen more than once commenting on the Halide application, it's not for nothing, it's probably the best iPhone camera app yet. Its creators have now launched a new photography application, it is Spectrumand it's amazing This new application also relates to photography, although in this case, it focuses on a specific function: the long exposure. It's been a while since I disturb her, and she certainly promises it to me.
The long exposure to photography and very simplified means that photography instead of being done instantly, it takes longer than normal. It's like you're making a video of a few seconds and overlay each image one on the other to create a single image. This is designed to allow more light to enter (the shutter is open longer) and to take better pictures in low light environments. However, it is usually used for the curious effect it generates. This effect is water that looks like fog or car lights that look like long wires for example.
Currently, iOS allows us to create "fake" long-exposure effects by editing Live Photo in the Photos application. Spectrum is precisely an application that aims to do it directly. Why do I use it already using iOS? Firstly because it does a lot more than that, we'll see it below, then because that's a specific application for her that has specific functions to enhance this type of images, as a stabilizer or the duration of each photograph in long exposure. Some examples of what he is able to do:
Night image where you can see the effect of cars and image in a river where you can see the effect generated by the water. 
Example of the "fog" effect generated by water on long exposure. Long exposure to the next level
Spectrum would not stay in a simple application to make beautiful effects on the photographs, go further and enjoy the function for other things. And in a long-exposure photograph, we find elements that move and elements that are fixed. Normally, the elements that move are the ones we want to capture to get the effect "thread". But what happens if they are people for example and come to the scene? What happens if it is a car but does not generate nightlights? Spectrum solves this problem.
Thanks to artificial intelligence built into the application, it is able to detect when an element sneaks into the scene without providing "value" in the picture. What are you doing? It eliminates it. If, for example, we take a long exposure day photograph and that a person is crossed inside the image, a scene with the fuzzy person will not be generated, but will disappear directly from the final image. This is something incredible, the developers cited as an example of use the function to take pictures of overcrowded places of people that we do not want to appear, for example in a monument. Attentive to the following GIF where it is very well illustrated:
The application also It has smart features to enhance images if we move the iPhone (in long exposure, it is essential not to move the camera). This feature does not work miracles, but it can do better than apps that do not. On the other hand, we must keep in mind that photos can be saved in the Photos application as Live Photos if we wish.
Its creators tell us that the application will eventually add more features in the future. They do not see it as a long exposure app, but as a smart shutter that can extend to many types of photographs. We will see For the moment, Specter is available on the App Store has a price of 2.29 euros. But careful, this price is a launch offer and it will only be available temporarily, then it will increase. If the app interests you, it will be better to take advantage now.
More information | Spectrum
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