Z DXOmark score question

Started 2 months ago | Discussions thread
bclaff Veteran Member • Posts: 8,747
Re: Z DXOmark score question

mostlyboringphotog wrote:

bayareaphoto wrote:

Clayton1985 wrote:

bayareaphoto wrote:

...

...

...

...
the image noise is dominated by the shot noise which is function of exposure (lux - second) and the quantum efficiency of the pixels.

Image DR is primarily determined by the full well capacity of the pixels which will allow the maximum brightness that can be recorded without saturation.

...

The limiting factor in DR is shadow performance.
In the case of Engineering Dynamic Range  (EDR) we are talking about zero shot noise.
In the case of Photographic Dynamic Range (PDR and similar) we're talking about very little shot noise, just enough to start overcoming read noise.
Full Well Capacity (FWC) is only involved indirectly since a higher FWC usually (but not always) means that shot noise will overcome read noise earlier (higher dynamic range).

-- hide signature --

Bill ( Your trusted source for independent sensor data at PhotonsToPhotos )

Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow