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photo:pixel_size

sensor pixel pitch size and density

Introduction

  • in general, given the same technology, the larger the photosite (“pixel”) size or “pitch” on the sensor, the less image noise at high ISO although potentially less aesthetic digital noise as the noise pixels take up a greater proportion of the image, but on a given size sensor, this means lower pixel density and thus less megapixels, so there is always a trade off

Examples from largest to smallest

note sensor area

  • medium format = 1441 mm²
  • 35mm full frame = 864 mm²
  • Fujifilm XT / Nikon DX = 367 mm²
  • APS-C = 336 mm²
  • Micro Four Thirds and Four Thirds = 225 mm²

current cameras

camera sensor size megapixels pixel size pixel density per mm
12mp Sony a7SII 2015 full frame 12.2mp 8.32µm 119
Canon 1DX II 2015 full frame 20mp 6.54µm 153
Sony a7III 2018 full frame 24mp 5.91 µm 169
Fuji GFX50S medium format MF 51.4mp 5.3 µm 188
Sony a7RII/III 2017 full frame 42.4mp 4.5 µm 222
Canon 7D II 2015 APS-C 20mp 4.08 µm 245
Fuji X-H1 2018 DX 24.3mp 3.88 µm 258
Sony a7RIV 2019 full frame 61mp 3.76 µm 266
Sony 100mp MF IMX 461 sensor 2019 MF 100mp 3.76 µm 266
Sony 150mp MF IMX 411 sensor 2019 MF 150mp 3.76 µm 266
Olympus E-M1 2015 MFT 16mp 3.72 µm 269
Olympus E-M1II 2017 MFT 20mp 3.32 µm 301

older cameras

camera sensor size megapixels pixel size pixel density per mm
DALSA astro 2006 4“x4” 111mp 9 µm
Canon 1DS 2001? full frame 11.4mp 8.8 µm
Canon 1DIII 2007 APS-H 10mp 7.4 µm 135
Olympus E-1 2001 FT 5.6mp 6.8 µm
Canon 1DSIII 2007 full frame 21.1mp 6.4 µm 156
8mp Canon APS-C 2005 APS-C 8mp 6.4 µm
10mp Canon APS-C 2007 APS-C 10mp 5.7 µm 175
10mp Four Thirds 2007 FT 10mp 4.7 µm 175
8mp Olympus C8080 prosumer 2005 2/3“ 8mp 2.7 µm
12mp Canon G9 prosumer 2005 1/1.7” 12mp 1.9 µm
photo/pixel_size.txt · Last modified: 2019/07/27 14:13 by gary1