Archived posting to the Leica Users Group, 2010/06/06

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Subject: [Leica] DNG Compression
From: richard at imagecraft.com (Richard Man)
Date: Sun, 6 Jun 2010 03:17:52 -0700
References: <15184177894867703738491285857243387280-Webmail@me.com> <145329954870179055235352676650609271623-Webmail@me.com> <AANLkTikF2465ti9raW4q0uStsWJKVdeEQUV1YOGR_S6T@mail.gmail.com> <AANLkTilxDMwSLbrS4NaA_MvlvySQpBA6pUL4jWe63ugE@mail.gmail.com>

In plain English, are you saying that uncompressed DNG will give you
"no-compromise" with the exception of slower writes?

If so, I will stick with that.

On Sun, Jun 6, 2010 at 3:07 AM, Geoff Hopkinson <hopsternew at 
gmail.com>wrote:

> You may like to research the way that the black point is now set especially
> with higher ISO files when using the in camera compression to see if it is
> important for you in practice.
> Certainly you may find that the difference is not important for you but the
> process has changed compared to what was happening in the M8. This may be
> part of the way noise characteristics have been improved for higher ISO's.
> Specifically you may encounter that the black point may now be set much
> higher (clipping the more contaminated darks).
>
> Cheers
> Geoff
> http://www.pbase.com/hoppyman
>
>
> On 6 June 2010 15:04, Richard Man <richard at imagecraft.com> wrote:
>
> > Thanks for the info. Most of the time I don't find the speed limiting but
> > there have been a few instances where it was a bit too slow. Nice to know
> > and I will give it a try.
> >
> >
> > On Sat, Jun 5, 2010 at 6:57 PM, Scott Gregory <s_gregory1 at mac.com>
> wrote:
> >
> > > For what it's worth, I attended the Leica M9 Roadshow in Toronto this
> > past
> > > Thursday. The subject of shooting with the 9 in compression or not came
> > up
> > > and most of the shooters using M9's including Justin Stailey said they
> > shoot
> > > the M9 in compressed mode. Reason was the camera works faster for their
> > > purposes, street photography, wedding work etc. Less information for
> the
> > > camera to move around and said until an engineer comes up with
> something
> > > different they would stay with compressed. Apparently most had done
> > > comparison tests and could not come up with any real negatives between
> > for
> > > using in terms of quality being less.
> > > For what it's worth!
> > >
> > > Scott
> > >
> > > _______________________________________________
> > > Leica Users Group.
> > > See http://leica-users.org/mailman/listinfo/lug for more information
> > >
> >
> >
> >
> > --
> > // richard <http://www.imagecraft.com/>
> > // icc blog: <http://imagecraft.wordpress.com>
> > // photo blog: <http://www.5pmlight.com>
> > [ For technical support on ImageCraft products, please include all
> previous
> > replies in your msgs. ]
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>



-- 
// richard <http://www.imagecraft.com/>
// icc blog: <http://imagecraft.wordpress.com>
// photo blog: <http://www.5pmlight.com>
[ For technical support on ImageCraft products, please include all previous
replies in your msgs. ]


Replies: Reply from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] DNG Compression)
In reply to: Message from s_gregory1 at mac.com (Scott Gregory) ([Leica] DNG Compression)
Message from richard at imagecraft.com (Richard Man) ([Leica] DNG Compression)
Message from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] DNG Compression)