Blackmagic URSA 12K LF has a
98.0MP Full frame (35.64mm x 23.32mm ) sized CMOS sensor . On the other hand, Blackmagic 6K Pro has a
21.0MP Super 35 (23.1 x 13 mm ) sized CMOS sensor .
Blackmagic URSA 12K LF's sensor provides 77MP more than Blackmagic 6K Pro'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.
Below you can see the URSA Cine 12K LF and Cinema Camera 6K Pro sensor size comparison.
Sensor Size and Resolution Comparison image of Blackmagic URSA 12K LF and Blackmagic 6K Pro Cameras
As seen above, Blackmagic URSA 12K LF has a 2.8x Larger sensor area than Blackmagic 6K Pro. 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 URSA 12K LF
or the
Blackmagic 6K Pro ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Full frame versus Super 35),
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.
