"EMVA1288 standard offers the measured value of the “absolute threshold value for sensitivity”. It states the average number of required photons so that the signal to noise ratio is exactly 1."
Thursday, April 26, 2018
Are All Sony Sensors Created Equal?
Basler publishes a nice white paper "Sensor Comparison: Are all IMXs equal?" comparing various Sony sensors in different families:
"EMVA1288 standard offers the measured value of the “absolute threshold value for sensitivity”. It states the average number of required photons so that the signal to noise ratio is exactly 1."
"EMVA1288 standard offers the measured value of the “absolute threshold value for sensitivity”. It states the average number of required photons so that the signal to noise ratio is exactly 1."
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It looks like the saturation capacity _per unit area_ have decreased from the first to the second generation, while the dark noise per unit area are almost unchanged. In my opinion that is a step backward.
ReplyDeleteMaybe the saturation capacity is limited by FD. A smaller FD is for the low light imaging. If you want to take a picture under the sunshine, a larger FD is better (shot noise).
DeleteShould compare to the latest/third generation (imx420).
ReplyDeleteEverything looks good except the Frames per second thing, as I know about a sony pregius IMX253 sensor based camera that can offer 80 FPS with almost the same 12 Megapixel resolution. I think Frames per second plays an important role if we expect high quality imaging experience.
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