Panasonic FZ150 has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Panasonic ZS99 has a
20.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Venus Engine processor.
Panasonic ZS99's sensor provides 8MP more than Panasonic FZ150'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 FZ150 and ZS99 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FZ150 and Panasonic ZS99 Cameras
Panasonic FZ150 and Panasonic ZS99 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 Panasonic FZ150 has 68% larger pixel area compared to Panasonic ZS99, 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
Panasonic FZ150
or the
Panasonic ZS99 ,
including hyperfocal distance.
