Blackmagic Cinema 6K has a
24.0MP Full frame (36 x 24 mm ) sized CMOS sensor . On the other hand, Sony FX30 has a
26.0MP APS-C (23.5 x 15.6 mm ) sized BSI-CMOS sensor and features Bionz XR processor.
Below you can see the Cinema Camera 6K and FX30 sensor size comparison.
Sensor Size and Resolution Comparison image of Blackmagic Cinema 6K and Sony FX30 Cameras
As seen above, Blackmagic Cinema 6K has a 2.4x Larger sensor area than Sony FX30. 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
Blackmagic Cinema 6K
or the
Sony FX30 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Full frame versus APS-C),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.
