Both Panasonic ZS99 and Canon G7 X MII have 20.0 MP resolution sensors but Panasonic ZS99's sensor is 1/2.3-inch (6.17 x 4.55 mm ) and Canon G7 X MII's sensor is 1″ (13.2 x 8.8 mm ).
Since Canon G7 X MII's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Panasonic ZS99.
Below you can see the ZS99 and G7 X MII sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic ZS99 and Canon G7 X MII Cameras
As seen above, Canon G7 X MII has a 4.1x Larger sensor area than Panasonic ZS99. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
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 ZS99
or the
Canon G7 X MII ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1/2.3-inch versus 1″ ),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.
