We remove on Lumia with ND-filters
Probably, anyone who at least occasionally uses “Instagram” or simply edits photos on a smartphone, used the opportunity to apply filters on the already finished picture. And this is hardly anyone can now be surprised.
But what if the spirit of the old school lives in you, and you miss the old vanilla filters that were once screwed to the old father's Zenith? It may be worth trying to use them with your smartphone. But for now, don’t be in a hurry to get glue or tape - we’ve already managed to do the tests and are in a hurry to share our recommendations with you.
Neutral density filters or ND filters reduce the amount of light entering the lens without changing colors and shades in the image. By reducing the amount of light penetrating the matrix (or on the film), they allow you to select combinations of shutter speeds and apertures that, under different shooting conditions, would create an “overexposed” image. ND filters have numbers that correspond to the “step” of the diaphragm, for example, from f.1.4 to f.2 or from f.5.6 to f.8, etc. (in the Russian-language literature, the exact definition is more accepted: the filter number means the fraction of the transmitted light, that is, the number 2 is half of the luminous flux, one second).
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Filters exist in a variety of formats: they can be designed as a nozzle for a lens or designed to be placed in a special holder. They can be completely gray, with a soft or hard transition.
ND-filter can be very useful if you try to blur some part of the photo. Below is an example of how a photo of a waterfall is taken in daylight with automatic settings.
Here, the Lumia 1020, like all automatic cameras, will select the fastest shutter speed and thereby reduce the likelihood of camera shake. However, when shooting water, this “freezes” movement. By itself, this effect is normal, but what if you are trying to photograph something else?
Usually, if you want to create some blur in the photo, you slow down the shutter speed. But it works only partly in certain lighting conditions. If there is too much light, an increase in the exposure time will not work. For example, if we set the ISO at the lowest level and slow down the shutter speed to 1/80 of a second (which is still quite fast), then at the output we get the following result:
Almost immediately, you can understand that the picture is overexposed and does not fit at all.
But with the help of a number of filters, we can increase the exposure time to half a second and still get an excellent result.
This picture was taken with the help of three filters, located in front of the lens on the elastic straps. A warm graduated shade is also the effect of applying a filter, and not the result of photo-correction after shooting.
Extensive control over shooting options on the Lumia 1020 makes this kind of snapshot a fairly easy task. You need only a tripod and basic knowledge in photography: you need to understand how to properly build the ISO value and the exposure time. For the latter, it is quite possible that some experiments will be needed. But there are applications such as ND Converter that will help you calculate the time. After manually adjusting the focus and making sure everything else is set, select a timer function to prevent accidental camera shake.
And let this kind of shooting be possible from the outside is not the most aesthetically beautiful way, shooting with ND-filters can give you really extraordinary mobile images, well, or at worst, pull you to nature in a weekend :)
But what if the spirit of the old school lives in you, and you miss the old vanilla filters that were once screwed to the old father's Zenith? It may be worth trying to use them with your smartphone. But for now, don’t be in a hurry to get glue or tape - we’ve already managed to do the tests and are in a hurry to share our recommendations with you.
What are ND filters?
Neutral density filters or ND filters reduce the amount of light entering the lens without changing colors and shades in the image. By reducing the amount of light penetrating the matrix (or on the film), they allow you to select combinations of shutter speeds and apertures that, under different shooting conditions, would create an “overexposed” image. ND filters have numbers that correspond to the “step” of the diaphragm, for example, from f.1.4 to f.2 or from f.5.6 to f.8, etc. (in the Russian-language literature, the exact definition is more accepted: the filter number means the fraction of the transmitted light, that is, the number 2 is half of the luminous flux, one second).
')
Filters exist in a variety of formats: they can be designed as a nozzle for a lens or designed to be placed in a special holder. They can be completely gray, with a soft or hard transition.
What does all this mean in practice?
ND-filter can be very useful if you try to blur some part of the photo. Below is an example of how a photo of a waterfall is taken in daylight with automatic settings.
Here, the Lumia 1020, like all automatic cameras, will select the fastest shutter speed and thereby reduce the likelihood of camera shake. However, when shooting water, this “freezes” movement. By itself, this effect is normal, but what if you are trying to photograph something else?
Usually, if you want to create some blur in the photo, you slow down the shutter speed. But it works only partly in certain lighting conditions. If there is too much light, an increase in the exposure time will not work. For example, if we set the ISO at the lowest level and slow down the shutter speed to 1/80 of a second (which is still quite fast), then at the output we get the following result:
Almost immediately, you can understand that the picture is overexposed and does not fit at all.
But with the help of a number of filters, we can increase the exposure time to half a second and still get an excellent result.
This picture was taken with the help of three filters, located in front of the lens on the elastic straps. A warm graduated shade is also the effect of applying a filter, and not the result of photo-correction after shooting.
Extensive control over shooting options on the Lumia 1020 makes this kind of snapshot a fairly easy task. You need only a tripod and basic knowledge in photography: you need to understand how to properly build the ISO value and the exposure time. For the latter, it is quite possible that some experiments will be needed. But there are applications such as ND Converter that will help you calculate the time. After manually adjusting the focus and making sure everything else is set, select a timer function to prevent accidental camera shake.
And let this kind of shooting be possible from the outside is not the most aesthetically beautiful way, shooting with ND-filters can give you really extraordinary mobile images, well, or at worst, pull you to nature in a weekend :)
Source: https://habr.com/ru/post/234377/
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