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Most often this artifact is called skayfish if the lens gets a passing bird or insect. It is based on the discrepancy between the speed of the video and the frequency of the flapping of insect wings. Essentially, each video drops a few strokes of the wings of an insect, which when viewed looks like "arrow", provided with long protuberances. The motion of the insect by its translucent body seems to "boom" and vibration of the wings give the appearance of bumps. If desired, this effect can play anyone who has a video camera and experience of shooting flying insects is located at a certain distance from the camera".
This effect also operates when taking pictures of people in motion. The use of long exposure shooting of a moving object allows to achieve the "Ghost effect". The background is sharp and the subject blurred. The degree of blur of the object depends on the shutter speed and the speed of his movement. A similar effect can be obtained if the object for some time is in the frame motionless, and then quickly disappears from it - the object can be blurred and a clear but transparent, depending on the movement of an object or its part.
Also interested in the effect looks at objects in motion with any backlight (satellites, planes, helicopters, etc.), This method even allows you to "draw" a certain figure. This technique is called Freezelight / light graffiti. To paint it in the night the twilight or in a dark room. Governed by three parameters: shutter speed, aperture and sensitivity. When Amateur photography like effects often use only exposure. It allows you to capture trace from a moving luminous object. This same technique can be used not moving the light source and the camera.
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Freezelight (or light graffiti) is a technique of painting with light when photographing at slow shutter speeds.
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The photo shows the trail from the "pulsing" of the satellite. Phase "flash-attenuation-flash".
Shutter speed: 15 sec
F-number: 3.5
ISO: 800
Flash: no flash
Time taken: 22:00 24.05.2014
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A trace of flashes of navigational lights, external aircraft lighting equipment.
Shutter speed: 5 sec
F-number: 1.8
ISO: 400
Flash: no flash
Time taken: 21:14 14.04.2015
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A trace of flashes of navigational lights, external aircraft lighting equipment.
Shutter speed: 5 sec
F-number: 1.8
ISO: 400
Flash: no flash
Time taken: 21:17 14.04.2015
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Trail of flares navigation lights exterior lighting equipment planes flying next to each other at different heights.
Shutter speed: 5 sec
F-number: 1.8
ISO: 400
Flash: no flash
Time taken: 21:23 14.04.2015
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A trace of flashes of navigational lights, external aircraft lighting equipment.
Shutter speed: 2 sec
F-number: 1.8
ISO: 400
Flash: no flash
Time taken: 21:26 14.04.2015
Translated by «Yandex.Translator»
Brazilian photographer Vitor Schietti experimenting with different techniques of long exposure and communicates.
The examples of "current" light - the result of years searching for the perfect balance between the fading light of dusk, and different fireworks. "Working environment" of a fleeting nature, we need the balance of light is available for only 30-50 minutes per day, because attempts to achieve the desired pattern very little.
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The use of long exposure shooting of a moving object allows to achieve a "Ghost effect". The background is sharp and the subject blurred. The degree of blur of the object depends on the shutter speed and the speed of his movement.
A similar effect can be obtained if the object for some time is in the frame motionless, and then quickly disappears from it - the object can be blurred and a clear but transparent, depending on the movement of an object or its part.
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The cat quickly got out and hid in the time of the shooting
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Interval shooting (for timelapse or photographing of the scene at regular intervals of time) of bees from the hive.
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"Photographed on the phone, and at this point it started to vibrate"
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Some of the images in the photos we can identify these other images as helicopters, rather than airplanes, taken at long exposure, because of their characteristic spotlight.
Illustration created by By Zukas, a member The Brazilian Center of Ufology (CUB), where Cayetano Julio Neto also helped clarify the case to help understand the effect of light in a moving helicopter, captured with a long shutter speed of several seconds.
Helicopters monitor possible riots or protests after the 2007 presidential election in Lille, France. The helicopter is equipped with a powerful searchlight that draws a line when moving due to the high exposure.
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