Nikon Z50 vs Nikon D750 Comparison

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Z50 image
vs
D750 image
Nikon Z50 Nikon D750
Megapixels
20.90
24.30
Image resolution
5568 x 3712
6016 x 4016

Sensor

Sensor type
CMOS
CMOS
Sensor size
23.5 x 15.7 mm
35.9 x 24 mm
Sensor resolution
5600 x 3733
6038 x 4025
Diagonal
28.26 mm
43.18 mm
Compare sensor size:

Sensor Size

Actual size is set to screen
vs
1:2.34
(ratio)
Nikon Z50 Nikon D750
Surface area:
368.95 mm² vs 861.60 mm²
Difference: 492.65 mm² (134%)
D750 sensor is ~2.34x bigger than Z50's.
Note: You are comparing cameras of different generations. There is a 5 year gap between Nikon Z50 (2019) and Nikon D750 (2014). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
4.2 µm
5.95 µm
Difference: 1.75 µm (42%)
Pixel pitch of D750 is ~42% higher than Z50's.
Pixel area
17.64 µm²
35.4 µm²
Relative pixel sizes:
vs
Pixel area difference: 17.76 µm² (101%)
Pixel on Nikon D750 sensor is ~101% bigger than Nikon Z50's.
Pixel density
5.68 MP/cm²
2.83 MP/cm²
Difference: 2.85 µm (101%)
Nikon Z50 has ~101% higher pixel density than Nikon D750's.

Specs

Nikon Z50
Nikon D750
Crop factor
1.53
1
Megapixels
21.51
24.93
Optical zoom
n/a
Digital zoom
n/a
ISO range
Auto, 100-51200 (expands to 204,800)
Auto, 100-12800 (expands to 50-51200)
RAW support
Manual focus
Focus range
n/a
Macro focus range
n/a
Focal length
n/a
Aperture priority
Max. aperture
n/a
Metering types
Multi, Center-weighted, Highlight-weighted, Spot
Multi, Center-weighted, Spot, Highlight-weighted
Exposure compensation
±5 EV (in 1/3 EV, 1/2 EV steps)
±5 EV (in 1/3 EV, 1/2 EV steps)
Shutter priority
Shutter speed (min)
30s
30s
Shutter speed (max)
1/4000s
1/4000s
Built-in flash
External flash
Viewfinder type
Electronic
Optical (pentaprism)
White balance
8
12
Screen size
3.2"
3.2"
Screen resolution
1,036,800 dots
1,228,800 dots
Video available
Max. video resolution
3840x2160 (30p/​25p/​24p)
1920x1080 (60p/50p/30p/25p/24p)
Storage type
SD/SDHC/SDXC
SD/SDHC/SDXC
USB Version
2.0 (480 Mbit/sec)
2.0 (480 Mbit/sec)
HDMI
Wireless support
GPS
Battery
EN-EL25 lithium-ion battery
EN-EL15 rechargeable Li-ion battery
Weight
450g
840g
Body size
126.5 x 93.5 x 60 mm
140.5 x 113 x 78 mm
Released
2019
2014


Compare various cameras

vs

Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Nikon Z50 diagonal

w = 23.50 mm
h = 15.70 mm
Diagonal =  23.50² + 15.70²   = 28.26 mm

Nikon D750 diagonal

w = 35.90 mm
h = 24.00 mm
Diagonal =  35.90² + 24.00²   = 43.18 mm


Surface area

Surface area is calculated by multiplying the width and the height of a sensor.

Z50 sensor area

Width = 23.50 mm
Height = 15.70 mm

Surface area = 23.50 × 15.70 = 368.95 mm²

D750 sensor area

Width = 35.90 mm
Height = 24.00 mm

Surface area = 35.90 × 24.00 = 861.60 mm²


Pixel pitch

Pixel pitch is the distance from the center of one pixel to the center of the next measured in micrometers (µm). It can be calculated with the following formula:
Pixel pitch =   sensor width in mm  × 1000
sensor resolution width in pixels

Z50 pixel pitch

Sensor width = 23.50 mm
Sensor resolution width = 5600 pixels
Pixel pitch =   23.50  × 1000  = 4.2 µm
5600

D750 pixel pitch

Sensor width = 35.90 mm
Sensor resolution width = 6038 pixels
Pixel pitch =   35.90  × 1000  = 5.95 µm
6038


Pixel area

The area of one pixel can be calculated by simply squaring the pixel pitch:
Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:
Pixel area =   sensor surface area in mm²
effective megapixels

Z50 pixel area

Pixel pitch = 4.2 µm

Pixel area = 4.2² = 17.64 µm²

D750 pixel area

Pixel pitch = 5.95 µm

Pixel area = 5.95² = 35.4 µm²


Pixel density

Pixel density can be calculated with the following formula:
Pixel density =  ( sensor resolution width in pixels)² / 1000000
sensor width in cm

One could also use this formula:
Pixel density =   effective megapixels × 1000000 / 10000
sensor surface area in mm²

Z50 pixel density

Sensor resolution width = 5600 pixels
Sensor width = 2.35 cm

Pixel density = (5600 / 2.35)² / 1000000 = 5.68 MP/cm²

D750 pixel density

Sensor resolution width = 6038 pixels
Sensor width = 3.59 cm

Pixel density = (6038 / 3.59)² / 1000000 = 2.83 MP/cm²


Sensor resolution

Sensor resolution is calculated from sensor size and effective megapixels. It's slightly higher than maximum (not interpolated) image resolution which is usually stated on camera specifications. Sensor resolution is used in pixel pitch, pixel area, and pixel density formula. For sake of simplicity, we're going to calculate it in 3 stages.

1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.

2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:
(X × r) × X = effective megapixels × 1000000    →   
X =  effective megapixels × 1000000
r
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

Z50 sensor resolution

Sensor width = 23.50 mm
Sensor height = 15.70 mm
Effective megapixels = 20.90
r = 23.50/15.70 = 1.5
X =  20.90 × 1000000  = 3733
1.5
Resolution horizontal: X × r = 3733 × 1.5 = 5600
Resolution vertical: X = 3733

Sensor resolution = 5600 x 3733

D750 sensor resolution

Sensor width = 35.90 mm
Sensor height = 24.00 mm
Effective megapixels = 24.30
r = 35.90/24.00 = 1.5
X =  24.30 × 1000000  = 4025
1.5
Resolution horizontal: X × r = 4025 × 1.5 = 6038
Resolution vertical: X = 4025

Sensor resolution = 6038 x 4025


Crop factor

Crop factor or focal length multiplier is calculated by dividing the diagonal of 35 mm film (43.27 mm) with the diagonal of the sensor.
Crop factor =   43.27 mm
sensor diagonal in mm


Z50 crop factor

Sensor diagonal in mm = 28.26 mm
Crop factor =   43.27  = 1.53
28.26

D750 crop factor

Sensor diagonal in mm = 43.18 mm
Crop factor =   43.27  = 1
43.18

35 mm equivalent aperture

Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture with crop factor (a.k.a. focal length multiplier).

Z50 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Nikon Z50, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Nikon Z50 is 1.53

D750 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Nikon D750, take the aperture of the lens you're using and multiply it with crop factor.

Since crop factor for Nikon D750 is 1, the equivalent aperture is aperture.

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