Canon A3000 IS has a
10.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Canon A3400 IS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Canon A3400 IS's sensor provides 6MP more than Canon A3000 IS's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the A3000 IS and A3400 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Canon A3000 IS and Canon A3400 IS Cameras
Canon A3000 IS and Canon A3400 IS have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Canon A3000 IS has 59% larger pixel area compared to Canon A3400 IS, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Canon A3000 IS
or the
Canon A3400 IS ,
including hyperfocal distance.
