Question about Canon PowerShot Cameras
A video I took...when I downloaded it, they said it was too high
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Image Quality decrease
Um ok. first off, chill with the images being described in inches. The DSC-S40 is way too simple to get lost with. You only have 2 options to play with. One is the resolution which you want to be as high as possible unless you have some special reason for it not to be. Two is you have 2 image quality settings to choose from(Fine and Standard). choose "fine" of course for best results. yes the files size will be a bit larger, but you get the best possible image. Remeber, this is considered a cheap camera, so you want the most it can offer.
Now about the file size anomalies. Dont worry about it. Here is the only conclusion I can come up with that sounds logical. .JPG and most "compressed" image types will never be the same size if taken from a camera unless the same exact picture is shot 2 times in a row very fast witout the camera moving. files size on a compressed image depends on the amount of color variations the camera has to render into a file. The more color variations, the more data the .JPG file contains. It is natural for file sizes from a camera to differ. If you set your camera at 4M and take a picture, and then you set it to 3M and try to take the same picture again thinking it will save space, in theory this is true, but remeber how "compressed" images are rendered. You may have had only the slightest difference of light change on the next pitcture you took . This can have a significant impact on the file size, and can result in a lower res image being bigger in file size than the higher res image. Now, if you are talking a huge difference like 3M@1500kb yet 4M gives you 500kb, then you either have it set to "standard" quality, or you are really lost in this stuff.
But anyway, I hope this is plenty of info. And makes plenty of sense to anyone who understands compressed images.
Posted on Jun 27, 2008
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