Archived posting to the Leica Users Group, 2007/01/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Should have mentioned - After two years 'chimping and fiddling' with a DSLR, it is a great joy to get back to M style shooting without more than one button push (IE, the shutter release) Within the first hour I knew the machine was capturing good histograms and have had the back snapped up most of the time. I'm no luddite and love to chimp and check focus, but it is nice to simplify the process of capturing digital images. Eric On 1/14/07, Leonard Taupier <len-1@comcast.net> wrote: > Indulge for now. I'm sure that's part of the learning process. You'll > grow out of it. > > Len > > > On Jan 14, 2007, at 9:57 AM, Eric Korenman wrote: > > > much thanks to all who replied. > > > > I am luckily now testing out my very own M8. > > So far I am very impressed. > > I highly recommend putting a half case on - preferablly Luigi's with > > the snap open back panel. Makes you focus on shooting rather than > > chimping and fiddling with buttons. > > > > Eric > > > > > > On 1/14/07, G Hopkinson <hoppyman@bigpond.net.au> wrote: > >> Eric, I managed to locate the rather gargantuan thread on this > >> subject in the Leica User Forum. My brain hurts. If you are feeling > >> especially robust, here it is. > >> http://www.leica-camera-user.com/digital-forum/7498-m8-why-10mb-vs- > >> dmr-20mb.html > >> The executive summary, as near as I can figure is that the > >> difference between the DMR & M8 file size is due to the use of > >> lossless > >> compression with the M8. The issue of how the final M8 file is > >> arrived at is rather more painful. > >> The empirical result from the couple of original DNGs that I have > >> is that the file saves as a 16 bit TIFF of about 59MB. When the > >> tonal range is manipulated in Photoshop it shows none of the > >> posterisation and gapped histogram that I would expect when > >> performing > >> the same operation on an 8 bit file, such as a JPG. > >> I want one. > >> Cheers > >> Hoppy > >> > >> > >> -----Original Message----- > >> From: G Hopkinson [mailto:hoppyman@bigpond.net.au] > >> Sent: Thursday, 11 January 2007 10:45 > >> To: 'Leica Users Group' > >> Subject: RE: [Leica] M8 Article in LFI > >> > >> Thanks Eric, I have no experience at all with the DMR, except > >> admiring magnificent output from Doug Herr, for example. My > >> understanding is that both sensors are capturing at 14 bit. It's > >> what's happening afterwards that I am most interested in. 14 bit to > >> a 16 bit DNG must involve processing too. The sample M8 DNG that I > >> have here saves as a 59MB 16 bit TIFF. > >> Do you think that the file size difference could be due to more > >> efficient lossless compression with the M8? I have an idea that this > >> subject has been attacked within the Leica User Forum. I must do > >> some searching. > >> > >> Cheers > >> Hoppy > >> > >> -----Original Message----- > >> From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org > >> [mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On > >> Behalf Of > >> Eric Korenman > >> Sent: Thursday, 11 January 2007 10:06 > >> To: Leica Users Group > >> Subject: Re: [Leica] M8 Article in LFI > >> > >> The DMR chip captures 14 bit directly into 16 bit DNG files. > >> Thats why DMR RAW filres are 20mb > >> And the 8 bit DNGs from the M8 are 10mb > >> > >> I think the upper end Canon's chips capture 12bits of data. > >> I am sure a Canon user will chime in here. > >> > >> Eric > >> > >> > >> On 1/10/07, G Hopkinson <hoppyman@bigpond.net.au> wrote: > >> > > >> > Guys this is an area of great interest to me. I do wish that I > >> had that > >> > LFI article. AFAIK no digital camera sensor captures at a > >> > higher bit rate than that. There's a lot that I don't understand > >> regarding > >> > that processing within the camera. However empirically, > >> > when you manipulate the M8 RAW files tonal range within > >> Photoshop they ARE > >> > emphatically superior to any 8 bit file and certainly as > >> > robust as any 16 bit scan from 35mm (which is my own experience). > >> > So I join Eric in hoping that a LUG member of scientific bent > >> can give us > >> > an insight into the in-camera processing. > >> > > >> > Cheers > >> > Hoppy > >> > > >> > -----Original Message----- > >> > From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org [mailto: > >> > lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of > >> > Didier Ludwig > >> > Sent: Wednesday, 10 January 2007 22:21 > >> > To: Leica Users Group > >> > Subject: Re: [Leica] M8 Article in LFI > >> > > >> > > >> > >So.. Isn't the weakest link in the imaging processing chain an > >> 8 bit > >> > format? > >> > > >> > yes if you exclude 6-bit and 4-bit format > >> > > >> > >LFI then goes on to say essentially "you won't see the > >> difference anyway" > >> > > >> > This translates in "the main thing is there's a red dot on" > >> > ;-) > >> > Didier > >> > > >> > > >> > > >> > _______________________________________________ > >> > 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 > >> > > >> > >> _______________________________________________ > >> 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 > >> > > > > _______________________________________________ > > 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 >