How can themeparks snap a crystal clear picture of you on a rollercoaster going 70mph
In: Technology
A blurry pictures is normally due to one of two things:
1. Unfocused lens
2. Moving subject
In normal cases a camera needs to find the subject, focus on it and take a picture before these settings need to be changed to keep a clear picture.
In a rollercoaster camera you place the camera in a set place and calculate the focus of the lens and the position of the subject before the picture is taken.
When the train reaches a camera trigger the camera takes a picture of this already decided place. Anything there will be sharp.
The trigger sensor helps the camera to know when the subject is at the “right” spot.
This in combination with a decent flash is what results in a clear picture.
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