Olympus TG-830 iHS has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CMOS sensor . On the other hand, Olympus TG-2 iHS has a
12.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor .
Below you can see the TG-830 iHS and TG-2 iHS sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus TG-830 iHS and Olympus TG-2 iHS Cameras
Olympus TG-830 iHS and Olympus TG-2 iHS 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. On the other hand, since Olympus TG-2 iHS has 35% larger pixel area (2.38µm 2 vs 1.76µm 2 ) compared to Olympus TG-830 iHS, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
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
Olympus TG-830 iHS
or the
Olympus TG-2 iHS ,
including hyperfocal distance.
