First (most of) the EXIF data
Front Camera Rear Camera
Filename - IMG20160708161903.jpg IMG20160708161805.jpg
ExposureTime - 1/25 seconds 1/33 seconds
FNumber - 2.00 2.20
ISOSpeedRatings - 179 248
ShutterSpeedValue - 1/25 1/33 seconds
ApertureValue - F 2.00 F 2.20
FocalLength - 2.94 mm 3.46 mm
ExifImageWidth - 3264 4160
ExifImageHeight - 2448 3120
GainControl - Low gain up High gain up
Now, the overviews
Both were shot on a tripod, but when you spin the phone around the camera becomes "at the other end" and while I shifted the tripod clearly it wasn't perfectly enough. The Front camera is a little wider angle than the Rear ... which is interesting to note.
The tree was shot at about "selfie" distance (meaning arm distance) to examine images at that focal distance.
Now, lets explore the image a little. By default I don't 100% pixel peep as that is not what a print looks like, I use 50% as my experience has shown that screen at 50% is pretty close to close examination of a print (often at 300dpi).
I chose the same focal point on both (not that the front camera shows any evidence of focusing) and its interesting to note that the colour balance is different between them too.
However on this occasion I think its actually interesting to look at 100% pixel view.
which shows a number of interesting things.
- the Front camera appears sharper (check the fine detail of the "air ferns" behind the leaves) however when you look though the image you can see that the Front Camera (not focusing at all) has of course got closer in focus by its design - however the rear camera has managed to mistake focus (god knows how) and focus at the distance of the wall behind it
- the rear camera seems to have a better dynamic range
- the front camera seems to have a better JPG rending (something I've complained about on this phone a lot)
So ... there you go