4:3, 3:2 or 16:9?

MustangJoe wrote:

I did an experiment where I took 4 photos in each of the aspect ratios supported by the LX7 to compare the size of each image. Here they are:

16:9 3968 x 2232 8,856,576

3:2 3776 x 2520 9,515,520

4:3 3648 x 2736 9,980,928

1:1 2736 x 2736 7,485,696

If you shoot 4:3 then crop to 16:9 here's what you get:

3648 x 2052 7,485,696

If you know in advance which aspect ratio you want for your image then it's best to shoot that ratio. Changing ratios in post processing will always give you an image with less pixels than if it had been shot in that ratio originally.