Joseph Tainter wrote: > Thanks, Doug. So the dynamic range is the same for 12 vs. 22 bit > conversion, but the 22 bit conversion allows more subtle shading. > I have never been discontented with the shading rendered by my D. > Is the 22 bit converter much ado about nothing?
Changing the AD conversion won't change the dynamic range, as long as it's not the limiting factor for dynamic range in the system. In this case, they're comparing the 12-bit conversion to the 22-bit conversion of the same signal, just done two different ways. Anyway, the dynamic range is the same, it's just "more finely diced" by the 22-bit conversion. I believe that in these DSLR systems, it's most likely that the sensor is the limiting item with regard to dynamic range. The 22-bit representation of the signal may allow them to do more operations on it in camera before the image starts posterizing, though, like working in Photoshop on a 16-bit image rather than an 8-bit one. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
