Ricoh GR IV Monochrome has a
26.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor . On the other hand, Sony A3000 has a
20.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features BIONZ processor.
Ricoh GR IV Monochrome's sensor provides 6MP more than Sony A3000'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.
Another difference between these two cameras is that Ricoh GR IV Monochrome'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 GR IV Monochrome and A3000 sensor size comparison.
Sensor Size and Resolution Comparison image of Ricoh GR IV Monochrome and Sony A3000 Cameras
Ricoh GR IV Monochrome and Sony A3000 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 Sony A3000 has 28% larger pixel area (18.50µm 2 vs 14.35µm 2 ) compared to Ricoh GR IV Monochrome, 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
Ricoh GR IV Monochrome
or the
Sony A3000 ,
including hyperfocal distance.
