Leica T Typ 701 has a
16.0MP APS-C (23.6 x 15.7 mm ) sized CMOS sensor . On the other hand, Sony A1 has a
50.0MP Full frame (35.9 x 24 mm ) sized Stacked CMOS sensor and features Dual Bionz XR processor.
Sony A1's sensor provides 34MP more than Leica T Typ 701'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 T Type 701 and A1 sensor size comparison.
Sensor Size and Resolution Comparison image of Leica T Typ 701 and Sony A1 Cameras
As seen above, Sony A1 has a 2.3x Larger sensor area than Leica T Typ 701. 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.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It 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. Leica T Typ 701 and Sony A1 sensors have been tested by DxO and the results show that A1 has a better overall score of 98, 23 points higher compared to T Type 701's score of 75.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Leica T Typ 701
75
23.0 bits
12.7 Evs
1082 ISO
Sony A1
98
25.9 bits
14.5 Evs
3163 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
Leica T Typ 701
or the
Sony A1 ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(APS-C versus Full frame),
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.
