Hi!

+description: |-
+ The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor

I assume it is 0.25 inch sensor? 1/4 inch or 0.25 inch would be
understandable, but 1/4.0 is kind of strange.

Agree with you here, but looking at the document [1] its referred the same way "1/4.0".

[1] http://www.opensourceinstruments.com/Electronics/Data/IMX219PQ.pdf

It is refered as "Type 1/4.0" and I'm not really sure what it means.

1/4 inch is 6.35mm, but document states it is 4.6mm.

https://www.photoreview.com.au/tips/buying/unravelling-sensor-sizes/
explains this system, but they use 1/4", not 1/4.0, and it translates
that to 4.5mm.

I guess easiest way is to say it is "4.8mm CMOS active pixel digital
image sensor" and forget about confusing inch values.

Best regards,
Pavel
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