Archived posting to the Leica Users Group, 2005/09/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Jim, If you haven't already, you should invest some time and read this thread, now 104 pages long! http://www.fredmiranda.com/forum/topic/267995/0 Exposure issues are discussed, in addition to many others related to using the DMR. David W. Almy Annapolis ----- Original Message ----- From: "Eric Korenman" <faneuil@gmail.com> To: "Leica Users Group" <lug@leica-users.org> Sent: Saturday, September 10, 2005 12:23 PM Subject: Re: [Leica] Weird: DMR and TTL works! Ok more TTL and DMR: Did a portrait shoot this AM of a friend's little boy. DMR performed well but I need to learn more my new digital existence. 1) The DMR and R8 tends to blow out highlights in outdoor scenes when there a full range of direct sunshine and shadows. Found myself needing to compensate by -1 to -2 stops. Got to wean myself of negative film's wide latitude. 2) Flash in TTL mode worked nicely indoors where the flash was providing the majority of light. 3) Flash in TTL mode in the outdoors failed miserably. I think my camera got thrown into some weird mode - Everything was WAY overexposed. Even after I disconnected the flash I was getting insanely overexposed results. Turning the camera and DMR off, then back on seemed to fix it. 4) Camera 'crashed' once. Locked up. I had to remove and replace the battery. May have been the TTL thing. I am not sure. I have shot about 200 exposures since I got back home - without flash. The DMR seems to be working fine. More testing in a bright backyard makes me think that I need to underexpose most daylight scenes by -1 stops. In full daylight, and at zero exposure compensation the histograms show that the DMR does tend to blow out highlights. BTW- I am using the full metering setting (the open rectangle). Eric On 9/10/05, Eric Korenman <faneuil@gmail.com> wrote: > > There have been reports that TTL and the DMR simply does not work and > switching the flash to TTL results in an error code in the R8 display. > My R8 does not report an error code My R8 was just 'upgraded' by Leica NJ. > Perhaps the coding in the R8 rom has changed? > Not sure. > Eric > > On 9/10/05, FRANK DERNIE <frank.dernie@btinternet.com> wrote: > > > > If I remember correctly the reason why TTL hasn't > > worked on digital cameras in the past is that the > > reflectivity of the surface of the low pass filter is > > very different from film, presumably varying in some > > non linear way that nobody has so far been able to > > adequately compensate for. Maybe now, without the low > > pass filter, the sensor surface is more like film or > > maybe, in the test pix in question, the error is > > negligible and under some other conditions the > > incorrect exposure may result. > > Frank > > > > --- Rick Dykstra < rdcb37@dodo.com.au> wrote: > > > > > Very interesting Eric. Lack off TTL flash control > > > with the DMR has > > > been a problem to my mind. > > > > > > I hope you can try it with longish lens on a subject > > > that will really > > > test the TTL. > > > > > > Rick. > > > > > > On 10/09/2005, at 1:03 PM, Jim Hemenway wrote: > > > > > > > Your "buyer's remorse" seems to be fading away. > > > > > > > > It took me much longer when I bought my house. :-) > > > > > > > > Jim > > > > > > > > > > > > Eric Korenman wrote: > > > > > > > > > > > >> As has been reported, I just assumed my DMR/R8 > > > would not work in > > > >> TTL flash mode. > > > >> I was testing out my Metz 32mz-3 with my DMR this > > > evening (using > > > >> SCA 2052 adapter). > > > >> I have a portrait session tomorrow and I thought > > > I do some shots > > > >> with fill flash in "A" mode. > > > >> I flip the flash into TTL to see what error code > > > I would get.. > > > >> And I got none! > > > >> Did some test shots (at night, indoors) and the > > > TTL feature > > > >> appears to work just fine. > > > >> Am I nuts? Am I missing something thing? > > > >> Adjusting the + / - dippy switches to effects > > > exposure appropriately. > > > >> I covered the flash's "eye" to see if I was in > > > some odd "A" mode > > > >> and the setup still worked. > > > >> The flash seems to be truly in TTL mode. > > > >> I will try it in AM daylight and report back. > > > >> Eric > > > >> _______________________________________________ > > > >> 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. 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