Digital BW, The Print

Stephen writes:

> Is that an artifact of this particular scan
> or will hold generally?

It will hold generally.  The Levels adjustment is nothing more than an
extremely simplified version of the Curves adjustment.

> The only problem with working in levels in 16 bit
> is that as you cannot use an adjustment level, there
> is no going back to revise what you have done.

You can take a snapshot before and after, and use the history brush to
switch between the two in specific areas, which is better than nothing.