Pentax S1 has a 14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . You can shoot at maximum resolution of 4288 x 3216 pixels with aspect ratios of 1:1, 4:3 and 16:9. S1 has a native ISO range of 80 - 6400 but unfortunately, Pentax S1 doesn't have RAW file support. If you need a Compact camera with a RAW support, consider
Pentax S1 is not the highest resolution Small Sensor camera. Canon SX740 HS with its 21.0MP sensor is leading in this class. Check the comparison of Pentax S1 vs Canon SX740 HS or take a look at Highest resolution Compact cameras list.
Let's look at how the size of the Pentax S1's 1/2.3-inch sensor compares with other standard sensor sizes.
Comparison image of Pentax S1 Sensor Size with other standard sensors
Sensor size is what determines the circle of confusion, and therefore how much
depth of field Pentax S1 gives you at any given aperture.
You can
calculate
the exact depth of field for the Pentax S1
at any focal length, aperture and subject distance, including the hyperfocal distance
for landscapes and how close you can get before the focus zone becomes too thin.
