Fujifilm X100 has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor and features EXR processor. On the other hand, Sony A380 has a
14.0MP APS-C (23.6 x 15.8 mm ) sized CCD sensor and features Bionz processor.
Another difference between these two cameras is that Fujifilm X100's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the X100 and A380 sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm X100 and Sony A380 Cameras
Fujifilm X100 and Sony A380 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 Fujifilm X100 has 14% larger pixel area compared to Sony A380, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
Both Fujifilm X100 and Sony A380 sensors have been tested by DxoMark. DxoMark scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Of the two cameras that we are comparing, X100 has scored 73, 6 points higher than A380.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Fujifilm X100
73
22.9 bits
12.4 Evs
1001 ISO
Sony A380
67
22.6 bits
11.8 Evs
614 ISO
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
Fujifilm X100
or the
Sony A380 ,
including hyperfocal distance.
