PIX 2015

Dynamic range and RAW file "bit depth"

Started Jan 25, 2014 | Questions thread
Shop cameras & lenses ▾
Senior MemberPosts: 5,602Gear list
Re: Dynamic range and RAW file "bit depth"
In reply to szhorvat, Jan 25, 2014

szhorvat wrote:

xpatUSA wrote:

Sorry, I was editing while you were typing. But anyway, it's not now clear to me whether we are talking about just the sensor dynamic range, or some other dynamic range.

I interpreted the term "sensor dynamic range" to mean exactly what it says without the complication of the following ADC. Easier for me to visualize because my Foveon sensor has real analog outputs, 0-550mV (77,000 x 7.14uv/e-).

I was talking about the (digital) information that's actually possible to get from the camera, not just the sensor without any ADC. This is what's practically relevant and this is what I believe DxO uses. I don't think they de-solder the sensors and try to use them separately. I believe they extract information from the camera as RAW files. I'll admit that these are all just assumptions on my part though, I do not know what their methodology is.

Do pardon my mis-interpretation of "The dynamic range of a sensor is the ratio between the brightest and dimmest recordable light intensity". I missed the word "recordable". Tsk!

-- hide signature --

"Engage Brain before operating Keyboard!"

 xpatUSA's gear list:xpatUSA's gear list
Sigma SD14 Sigma SD1 Merrill
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow