In any format the file will be at least 3mb and up to achieve the resolution necessary to produce the pixel density required.

There is no DPI setting in the camera. DPI (Dots Per Inch) is a print setting and a monitor resolution setting. Please read the information at the links below. They explain the DPI vs PPI issue with print shops much better than I can in this little box.

http://www.rideau-info.com/photos/mythdpi.html

http://www.rideau-info.com/photos/printshop.html

With your camera is set to 21 mp and Fine Compression the jpeg resolution (the maximum) should be high enough for most applications, your camera's sensor does have the resolution to produce the image that you need if you were strictly held to 300 dpi at 16 x 20

The resulting 21mp jpeg will give you an 16 X 20 print at 300 DPI (file size about 6.3 mb)

By the way just un-check resample in whatever photo software that you are using and you will see the DPI go up to 300 if you change the print size to 16 X 20


Keep in mind it really depends on how large it is going to be printed. If they were looking for 300 DPI for a 40 X 30 print the camera is not capable of producing that, but, if it is for a magazine, say 8 x 10 print, you can easily do that at the M setting. (approx. 3mb file)

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