trying to capture MOTION...

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rightright915

New member
I'm trying to capture 3 different motion shots, all with different shutter speeds. the first with a slow, the second with a medium speed and the last with a fast shutter speed. the first shot came out great (nice and blurred). i couldn't get the medium or fast shot to come out well exposed, they were both dark! i shot in Shutter priority and at night with a tripod. We aren't allowed to use the flash.

Is this something i should do during the day?

my professor allows phone calls at her home but seldom is home to answer.

what am i doing wrong?
 
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Joseph Bautsch

New member
What is the EXIF data on these shots? How slow was slow in the first one and how fast was fast in the last one? Upload your shots to your Gallery so we can see what you have. We should be able to give you some help with it.
 
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torgo

New member
Like Eduard and Joseph already said, more info would help diagnosis. But, here's my guess.

You say you're shooting in shutter priority mode. Your long exposure one turned out fine, because you had enough time on the exposure to offset the low light; shutter speed and aperture have a reciprocal relationship, so to decrease the amount of time the shutter lets light in, you need to increase the aperture by the same number of stops.When you shorted the exposure time, your camera attempted to compensate and give you correct exposure, but you can only open a lens up so far. Because you essentially "ran out" of aperture, you end up with an underexposed image.

There's three solutions to this. More light, not as short of a shutter speed, or increase your ISO setting. Since it sounds like the shutter speed is dictated by your assignment, you'll need more light or a higher ISO. You'll probably have better luck doing this during the day where you can go outside and let the sun do the dirty work, but raising the ISO inside might pull it off, as long as you don't mind some noise in the image.

Now we'll wait for samples and see if I'm way off base or not. :)
 
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Merc

Senior Member
From what i can gather from your post rightright, i would agree 100% with Torgo. It sounds like you have run out of avaliable light so the only answer is to increase your ISO. Which will of course add noise to your image. This can (to a degree) be reduced in post processing. Or as Torgo says, if you are able, shoot in daylight.
 
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