Archived posting to the Leica Users Group, 2006/11/05

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Subject: [Leica] Re:M8 DNG vs DMR DNG
From: len-1 at comcast.net (Leonard Taupier)
Date: Sun Nov 5 12:03:38 2006
References: <002401c6ffa0$c79fb2a0$6501a8c0@asus930> <001301c6ffab$ab4e1730$a302a8c0@ted> <454BEB21.4030805@mcclary.net> <000f01c6ffb6$4c719240$a302a8c0@ted> <454C0180.4060200@waltjohnson.com> <668FDF07-1E8E-4160-9E83-B6E0F3B195E8@ncable.net.au> <454CA504.4080501@waltjohnson.com> <454CB890.4090807@mcclary.net> <6BCCA260-D62E-4B7B-B62D-EF465523D34F@comcast.net> <5B480D7F-3BB4-475C-9922-E6BE1E5E4A69@earthlink.net> <848837E0-035A-448A-8E2A-FB748EB0450B@steveunsworth.co.uk> <BF446524-720D-4038-8758-50DB953A4ED8@comcast.net> <p0623093bc173df8055d0@[10.1.16.129]>

Henning,

Now that makes a lot of sense. Thanks. I do have some problematic  
scans that might benefit from rescanning to 16 bit.

Regards,
Len

On Nov 5, 2006, at 1:40 PM, 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.
>
> -- 
>    *            Henning J. Wulff
>   /|\      Wulff Photography & Design
>  /###\   mailto:henningw@archiphoto.com
>  |[ ]|     http://www.archiphoto.com
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information


In reply to: Message from hoppyman at bigpond.net.au (G Hopkinson) ([Leica] Re:M8 DNG vs DMR DNG)
Message from tedgrant at shaw.ca (Ted Grant) ([Leica] Re:M8 DNG vs DMR DNG)
Message from harrison at mcclary.net (Harrison McClary) ([Leica] Re:M8 DNG vs DMR DNG)
Message from tedgrant at shaw.ca (Ted Grant) ([Leica] Re:M8 DNG vs DMR DNG)
Message from walt at waltjohnson.com (Walt Johnson) ([Leica] Re:M8 DNG vs DMR DNG)
Message from firkin at ncable.net.au (Alastair Firkin) ([Leica] Re:M8 DNG vs DMR DNG)
Message from walt at waltjohnson.com (Walt Johnson) ([Leica] Re:M8 DNG vs DMR DNG)
Message from harrison at mcclary.net (Harrison McClary) ([Leica] Re:M8 DNG vs DMR DNG)
Message from len-1 at comcast.net (Leonard Taupier) ([Leica] Re:M8 DNG vs DMR DNG)
Message from vondauster at earthlink.net (Will von Dauster) ([Leica] Re:M8 DNG vs DMR DNG)
Message from lug at steveunsworth.co.uk (Steve Unsworth) ([Leica] Re:M8 DNG vs DMR DNG)
Message from len-1 at comcast.net (Leonard Taupier) ([Leica] Re:M8 DNG vs DMR DNG)
Message from henningw at archiphoto.com (Henning Wulff) ([Leica] Re:M8 DNG vs DMR DNG)