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I have a canon 6.3 MP DSLR ( Digital rebel ) camera, that produces jpeg files of the size approx 3-4 Mbytes.
But if I open one of these files in photoshop elements and resave it as jpeg ( I know I shouldnt resave jpegs ), the new file is about 500 kb. ( in the default good quality of 8 ).
Even if I choose the best jpeg quality ( 10 ) the file is still only about 700 kb.
When I check the quality of the produced jpegs, by zooming the picture to huge sizes, I dont see much difference in the quality. ( Even the exif data – camera model, shutter speed, date etc – are preserved )
Is it possible that the camera didnt have much horsepower to do a good job with the compression, so that it ended it with a big file that was not much compressed. If that is true then I can save some hard disk space by recompressing the images.
thanks
–nw
But if I open one of these files in photoshop elements and resave it as jpeg ( I know I shouldnt resave jpegs ), the new file is about 500 kb. ( in the default good quality of 8 ).
Even if I choose the best jpeg quality ( 10 ) the file is still only about 700 kb.
When I check the quality of the produced jpegs, by zooming the picture to huge sizes, I dont see much difference in the quality. ( Even the exif data – camera model, shutter speed, date etc – are preserved )
Is it possible that the camera didnt have much horsepower to do a good job with the compression, so that it ended it with a big file that was not much compressed. If that is true then I can save some hard disk space by recompressing the images.
thanks
–nw
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