by Jakub

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JPEG is a compressed format so the filesize does not correspond directly to the image resolution, but rather to it's content. The JPEG algorithm achieves lower filesizes with images that contain less detail, so if you have areas with very little detail, such as out of focus backgrounds or blown out skies then that can lead to dramatically smaller filesizes, ...


Based on the information you've given so far, I'm not yet convinced there is a problem. Assuming you mean 2-7 MB (Megabytes), not KB (Kilobytes), that file size could be consistent with a full resolution JPEG. 2-7 KB would not actually fit an image, except maybe a tiny thumbnail or icon. Look up the dimension of the image in pixels in your file browser - ...


The difference is very little. You can resize it if you are given the requirement to send a file with a precise dimension but otherwise send it as-is. This is because the printer must do a resampling of its own and if you do one before, there will be slightly more artifacts. Most crucially for you is that you will need to crop since the aspect-ratio of your ...


The EOS 5d mkII generates 5616x3744 JPEGs, while its sensor actually has 5634x3753 active pixels - hence the difference. So I'd suspect the difference must be in the workflow. In case of landscape photos, you're viewing EXIF information originating from camera (perhaps the preview JPEG in RAW); portrait photos have to be rotated and/or demosaiced by your ...

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