Sony RX100 VII has a
20.0MP 1″ (13.2 x 8.8 mm ) sized Stacked BSI-CMOS sensor and features Bionz X processor. On the other hand, Panasonic ZS45 has a
16.0MP 1/2.33 (6.08 x 4.56 mm ) sized CMOS sensor .
Below you can see the RX100 VII and ZS45 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony RX100 VII and Panasonic ZS45 Cameras
As seen above, Sony RX100 VII has a 4.2x Larger sensor area than Panasonic ZS45. 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
Sony RX100 VII
or the
Panasonic ZS45 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1″ versus 1/2.33),
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.
