Dynamic range and RAW file "bit depth"

Started 9 months ago | Questions thread
completelyrandomstuff
Regular MemberPosts: 170Gear list
Like?
Re: Dynamic range and RAW file "bit depth"
In reply to szhorvat, 9 months ago

That would make sense. The nonlinearity will begin the moment there are interactions between the electrons deficiency in the well. It takes more energy to remove an electron from a more negatively charged body. So that 'compression' is not necessarily engineered, I think it's a consequence of physics.

However, the way you digitize the signal, is engineered. The camera devotes the least digitization levels to lowest signals and that should, in theory compensate for the nonlinearity of the relationship between photon flux and well filling.

This is why DXO reports the  S/N ratio at 18% btw. This 18% corresponds to 50% gray.

 completelyrandomstuff's gear list:completelyrandomstuff's gear list
Olympus E-510 Pentax K-30 Olympus PEN E-PM2 Pentax smc DA 16-45mm F4 ED AL Sigma 10-20mm F4-5.6 EX DC HSM +1 more
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