Go Back   Steve's Digicams Forums > Digicam Help > General Discussion

Thread Tools Search this Thread
Old Apr 6, 2003, 10:03 PM   #11
Senior Member
BillDrew's Avatar
Join Date: Jun 2002
Location: Hay River Township, WI
Posts: 2,512

Originally Posted by Lin Evans
... Most professional level sensors are 12 bit (8 bit for consumer counterparts) level. ...
Would it be fair to then say that consumer digicams have an 8 stop range while pro sensors have a 12 stop range? Ignoring the fact (?) that digital has a sharp break at the highlights instead of a gradual "knee".
BillDrew is offline   Reply With Quote
Old Apr 6, 2003, 11:41 PM   #12
Join Date: Jun 2002
Posts: 1,139

Hi Bill,
I don't think that we could justify that conclusion. The additional four bits makes a tremendous difference in terms of the number of theoretical colors divisions within the spectrum possible to capture, but I don't think it has as much influence on the extremes as on the size of the discrete divisions within these extremes.

I find that 8-9 stops are warranted on low ISO captures with the better 12 bit sensors and 6-8 stops on the 8 bit sensors. Obviously, some are better and some or worse, but this seems to be a reasonable "guestimate" based on most measurements under fairly controlled conditions. You might visit dpReview where Mike Chaney (Qimage author) and Phil Askey (site owner) have conspired to get a handle on a way to better assess these measurements.

Lin Evans is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 7:01 PM.