Canon ELPH 510 HS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor . On the other hand, Canon SX150 IS has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Digic 4 processor.
Below you can see the ELPH 510 HS and SX150 IS sensor size comparison.
Sensor Size and Resolution Comparison image of Canon ELPH 510 HS and Canon SX150 IS Cameras
Canon ELPH 510 HS and Canon SX150 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.
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 510 HS
or the
Canon SX150 IS ,
including hyperfocal distance.