Sony HX30V has a
18.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features BIONZ processor. On the other hand, Canon SX700 HS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features Digic 6 processor.
Below you can see the HX30V and SX700 HS sensor size comparison.
Sensor Size and Resolution Comparison image of Sony HX30V and Canon SX700 HS Cameras
Sony HX30V and Canon SX700 HS 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
Sony HX30V
or the
Canon SX700 HS ,
including hyperfocal distance.