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TIFF or TIF format is not used to get small file sizes. It is a raw format for big files. In order to get small file sizes you can save as a 4 color GIF with size of 255kb or low quality JPG ~ 500kb. In other words, you need a format with compression. Why PS increases the file size ... I have no idea. It probably saves color data even when the mode is ...


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I have downloaded your TIFF images and examined them. The reason why the images scanned in RGB and converted to Grayscale in Photoshop are larger than the images scanned in Grayscale is simply that it's not the same images! It seems that when scanning in RGB you get much more detail in the light areas than when scanning in Grayscale. This is how the two ...


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