Always keep the largest Picture size (L) and the Quality
should be left to the fine JPEG mode which is the double
dotted bar until later setups when we will consider the other
format available to you.
Picture size (in Megapixels) will vary with each aspect ratio
selected so you may see different values.
Here I have set the HD format aspect ratio of 16:9 which
give 9Megapixel images.
Selecting the 4:3 aspect ratio will give the full 12Megapixel
size.
To aid composition I would also recommend setting the
Guide Line to the “Rule of Thirds” from the list of options.