Canon ELPH 500 HS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features DIGIC 4 with iSAPS technology processor. On the other hand, Sony T99 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Bionz processor.
Below you can see the ELPH 500 HS and T99 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon ELPH 500 HS and Sony T99 Cameras
Canon ELPH 500 HS and Sony T99 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.
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 ELPH 500 HS
or the
Sony T99 ,
including hyperfocal distance.