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Setting Up a Shot: Difference between revisions
→Exposure
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YSTV almost always uses a shutter speed of 1/50th of a second, or 180 degrees if using shutter angle. This is because it is usual to broadcast at 25fps (which YSTV also does) and the normal shutter speed for shooting is to shoot at a shutter speed of twice the frame rate. I.e. so that each frame of the footage is exposed for half of it's interval. This results (at 25fps) in a shutter speed of 1/50th or 180 degrees (which would expose the film frame for half of its time as it passed through he plane. | YSTV almost always uses a shutter speed of 1/50th of a second, or 180 degrees if using shutter angle. This is because it is usual to broadcast at 25fps (which YSTV also does) and the normal shutter speed for shooting is to shoot at a shutter speed of twice the frame rate. I.e. so that each frame of the footage is exposed for half of it's interval. This results (at 25fps) in a shutter speed of 1/50th or 180 degrees (which would expose the film frame for half of its time as it passed through he plane. | ||
180 degrees (1/50th) is a good rule of thumb for ~80 of content. There are situations where changing the shutter speed to ~1/60th is advisable: | 180 degrees (1/50th) is a good rule of thumb for ~80% of content. There are situations where changing the shutter speed to ~1/60th is advisable: | ||
* You're filming something that moves ''really'' fast and want the footage to blur less. If the view is still light enough after increasing the speed, go for it. | * You're filming something that moves ''really'' fast and want the footage to blur less. If the view is still light enough after increasing the speed, go for it. | ||