11-22-2017, 07:59 AM
"Progressive" mode has been invented for the web. The idea is that if you have a slow connection (think modem... or bad Wifi) you get an idea of the whole image before the whole file is transferred (this is also true for another Web format: PNG). In cameras this doesn't make much sense because the files out of the camera are rarely used on the web , and creating a progressive JPEG possibly requires more RAM and processing power (and don't think that your camera has too much processing power, this is one thing that limits the speed in burst mode)...
On the other hand all cameras do a trick which isn't in the JPEG standard: they encode the orientation of the picture (portrait/landscape) in the EXIF metadata, and the image viewer in WindowsXP was infamous for not handling that properly.
JPEGs produced by Gimp are used on the web in their vast majority so using the progressive mode by default make sense. And if you want something else, it is easy to change the default...
On the other hand all cameras do a trick which isn't in the JPEG standard: they encode the orientation of the picture (portrait/landscape) in the EXIF metadata, and the image viewer in WindowsXP was infamous for not handling that properly.
JPEGs produced by Gimp are used on the web in their vast majority so using the progressive mode by default make sense. And if you want something else, it is easy to change the default...