Why exactly do large sensors have more dynamic range

Started 3 months ago | Discussions thread
MOD Doppler9000 Regular Member • Posts: 397
Re: Why exactly do large sensors have more dynamic range

Erik Kaffehr wrote:

Doppler9000 wrote:

JimKasson wrote:

JimKasson wrote:

Full well capacity per unit area has maxxed out at around 3000 electrons per square micrometer (3000 e-/um^2).

The QHY600 monochrome astro camera, which uses a monochrome IMX455, has a full well capacity of >51,000 e- > 3,607 e-/um^2. (51/37 x 2617).

I assume the advantage lies in the lack of a CFA.

Using more of the non linear part of the photon transfer curve? That may make some sense on a monochrome device.

Best regards

Erik

I had missed a reference on the product page suggesting that the color version has the same fwc.

For a frame of reference, their IMX411BSI-based 150 mp camera has a rated fwc of > 50,000 e-, with an extended mode with > 80,000 e-.

The 102mp IMX461 camera has a rated fwc of 44,000 e-.

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