[Leica] Re:M8 DNG vs DMR DNG

[walt at waltjohnson.com (Walt Johnson)]

Henning

I'll go with Len on this. I'd never thought of using curves in each 
channel.

Thanks, Walt



Henning Wulff wrote:

> At 1:14 PM -0500 11/4/06, Leonard Taupier wrote:
>
>> Steve. I've got some slides to scan today. I'll try both 8 and 16 bit 
>> of the same slide. I've tried 16 bit in the past when I wanted 
>> ultimate quality for a very large print. As I recall the original 
>> tiffs looked pretty much identical and of course the 16 bit files are 
>> now getting really big. I'll play with both files to see if the 16 
>> bit holds up longer.
>>
>> Len
>>
>
> Hi Len,
>
> If you make only small adjustments to a well exposed photo, 8 bit and 
> 16 bit will be essentially the same. On the other hand, if you are 
> struggling to pull detail out of the shadows that you think you saw in 
> the original slide, only 16bit will do. One of the most powerful tool 
> in Photoshop, Curves, really shows the benefits of 16 bits, especially 
> if you use it on individual channels. If you have a slide or digital 
> image that is very flat, and almost everything is medium gray, the 
> Curves tool lets you expand that with very good control, but you'll 
> easily get banding with 8 bit files. 16 bits gives you a chance to 
> rescue these types of shots.
>