Panasonic S1R has a 47.0MP Full frame (36 x 24 mm ) sized CMOS sensor and features Venus Engine processor. You can shoot at maximum resolution of 8000 x 6000 pixels with aspect ratios of 1:1, 4:3, 3:2 and 16:9. S1R has a native ISO range of 100 - 25600 which can be boosted to 50 - 51200 and it can save files in RAW format which gives you a wider room for post processing.
Panasonic S1R is not the highest resolution Full frame camera. Blackmagic PYXIS 12K with its 98.8MP sensor is leading in this class. Check the comparison of Panasonic S1R vs Blackmagic PYXIS 12K or take a look at Highest resolution Mirrorless cameras list.
Panasonic S1R DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. Panasonic S1R sensor has been tested by DxO Mark and got an overall score of 100 for its image quality. You can find the details of their analysis of Panasonic S1R here.
High Resolution Mode
Panasonic S1R has a special High Resolution mode where the camera takes multiple images of a scene while moving its sensor using the sensor shift image stabilization system and combine them automatically to create a 187 MP MP image. This feature works best with static scenes and using a tripod is a must to minimize stitching artifacts.
Anti-Aliasing Filter
Another important feature about Panasonic S1R's sensor is the lack of anti-alias (Low-pass) filter. Removing anti-aliasing filter increases the sharpness and level of detail but on the other side it also increases the chance of moiré occurring in certain scenes.
Let's look at how the size of the Panasonic S1R's Full frame sensor compares with other standard sensor sizes.
Comparison image of Panasonic S1R Sensor Size with other standard sensors
Sensor size is what determines the circle of confusion, and therefore how much
depth of field Panasonic S1R gives you at any given aperture.
You can
calculate
the exact depth of field for the Panasonic S1R
at any focal length, aperture and subject distance, including the hyperfocal distance
for landscapes and the very shallow focus zone you get with long telephoto lenses.
