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Post by shp on Jan 8, 2010 12:43:23 GMT -5
I'm still reading this part of the chapter in my book, but I had always known that exposure was needed for a good photograph. The only problem I had earlier in the beginning was that I couldn't figure out how to set it manually on my Kodak camera, but now that I've looked up the manual online and found out that it does the exposure automatically and there's a feature where I can bracket exposures (it would take three pictures of the same scene, automatically changing the exposure in each at least by a stop), I'm even more confused.
The higher the exposure means what? The lower means what?
I'm not sure if my camera would be able to do shutter speed, so for fast-moving stuff I'm afraid I will have to wait on that.
And since I can't use the timer and the exposure bracketing at the same time, I highly doubt I will have a self-portrait photo shoot any time soon, not until I could have someone helping, and trust me, my mother takes horrible pictures. XD *hides his baby picture before you guys see it*.
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Post by ŋєт™ on Jan 8, 2010 13:08:02 GMT -5
Exposure is basically the amount of light that is allowed to reach your sensor or film. Exposure is directly related to shutter speed in the since that the longer the shutter speed the longer your exposure will be and vice versa. For example I didn't use any flash in this picture at all yet it looks pretty bright: joshengel.net/photos/clocktower.jpg That's because it was a long exposure. On your camera and in various programs you can alter the exposure digitally as you go to the higher side it will take more of the light data and as you go lower it will take more of the darker data. The feature that takes 3 pictures at different exposures is used for HDR photography.
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Post by Hope C. on Jan 8, 2010 13:10:30 GMT -5
Exposure is basically the amount of time that the lens is open, exposing the "film" (whether actual film or the digital film) to the light. The longer you have the exposure set to, the more light will get in, which brightens the picture. Those "light saber pictures" had very long exposures, usually about 25-45 seconds, which allowed for the streaking of the light. With a lower exposure, less light is let in, making for a darker picture. When there is a lot of light, you use a lower exposure (a faster shutter speed) because plenty can get in in that short amount of time. When there is poor lighting, you would use a higher exposure (slower shutter speed) because it takes more time to get sufficient light into the camera to make a good picture.
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