Canon SL2 has a
24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features DIGIC 7 processor. On the other hand, Pentax ist DS2 has a
6.0MP APS-C (23.5 x 15.7 mm ) sized CCD sensor .
Canon SL2's sensor provides 18MP more than Pentax ist DS2's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Below you can see the SL2 and ist DS2 sensor size comparison.
Sensor Size and Resolution Comparison image of Canon SL2 and Pentax ist DS2 Cameras
As seen above, Pentax ist DS2 has a 1.1x Larger sensor area than Canon SL2. 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
Canon SL2
or the
Pentax ist DS2 ,
including hyperfocal distance.
