This is a basic guide to pixel resolutions for various popular camera sizes
although a file may be small, dependant on the situation the picture is going to be displayed in could still be a quality image eg: if viewed from a distance a lower 150ppi can be used
for a quality printed image that is to be viewed close up say 2ft or closer a 300ppi is recommended
Top quality prints are achieved with a good quality image in the largest file size possible and in focus, if these are all present almost any size picture can be printed from a 6″x 4″ to billboard size
Megapixels | Pixel Resolution* | Print Size @ 300ppi | Print size @ 200ppi | Print size @ 150ppi** |
3 | 2048 x 1536 | 6.82″ x 5.12″ | 10.24″ x 7.68″ | 13.65″ x 10.24″ |
4 | 2464 x 1632 | 8.21″ x 5.44″ | 12.32″ x 8.16″ | 16.42″ x 10.88″ |
6 | 3008 x 2000 | 10.02″ x 6.67″ | 15.04″ x 10.00″ | 20.05″ x 13.34″ |
8 | 3264 x 2448 | 10.88″ x 8.16″ | 16.32″ x 12.24″ | 21.76″ x 16.32″ |
10 | 3872 x 2592 | 12.91″ x 8.64″ | 19.36″ x 12.96″ | 25.81″ x 17.28″ |
12 | 4290 x 2800 | 14.30″ x 9.34″ | 21.45″ x 14.00″ | 28.60″ x 18.67″ |
16 | 4920 x 3264 | 16.40″ x 10.88″ | 24.60″ x 16.32″ | 32.80″ x 21.76″ |
36 | 7360 x 4912 | 24.53″ x 16.37″ | 36.80″ x 24.56″ | 49.06″ x 32.74″ |