Archived posting to the Leica Users Group, 2013/05/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks for the calculator Now, +2 might be +1 on micro 4/3s, and plus zero on 2/3 Amiti?s Philippe ======================================== Message du : 19/05/2013 23:08 De : "Mark Rabiner " <mark at rabinergroup.com> A : "Philippe Amard" <philippe.amard at sfr.fr> Copie ? : Sujet : Re: [Leica] Mark's 5.6 and be there - MARK II Yea I got a thing on my computer for that now http://imaginatorium.org/stuff/stops.htm And two stops down from f1 is f2. Summicron. And stopping down to 5.6 is 5 stops. What I think of as f22 being. On 5/19/13 5:01 PM, "Philippe Amard" wrote: > So you're back at it :-( > > > nocti 0.95 stopped down two = ? > telyt 560 f5.6 stopped down two = ? > > > Both serious lenses, primes and on topic. > > > Ph > > > > > > > > ======================================== > > Message du : 19/05/2013 22:44 > De : "Mark Rabiner " > A : "Leica Users Group" > Copie ? : > Sujet : Re: [Leica] Mark's 5.6 and be there > > > If you've looked at those lens test charts they used to always had in Pop > and Modern photography monthly for decades we all did a lens always get a > bit better contrast and resolution stopped down two or three. Its just the > nature of optics. > Now we hear that with some of our four grand $ Leica glass "there is no > reason to stop down it all" I kind of think its horse crap. > A lens going to improve stopped down a bit. The fact that it says Leica on > it and cost four grand has no way of changing that. > You wanna use the meat of the lens. There is fatty residue in the outside > parameter best cut off by the butcher. > > > On 5/19/13 12:16 PM, "Lew Schwartz" wrote: > >> Also, aren't a lot of 35mm lenses supposed to be sharpest at 4.0 - 5.6? >> >> -Lew Schwartz >> >> >> On Sun, May 19, 2013 at 5:29 AM, > wrote: >> >>> >>> Thank you Marshall, >>> >>> >>> this was known to me and actually sounds more of an urban legend >>> adressing >>> trainees or freshmen PJs than anything else. >>> >>> >>> In addition it doesn't explain why Mark a contemporary experienced >>> professional photog who has published in the NYT, insists on shooting 5.6 >>> and be there whatever the format. >>> >>> >>> :-( >>> >>> >>> Philippe, still willing to learn :-) >>> >>> >>> >>> >>> ======================================== >>> >>> Message du : 19/05/2013 06:11 >>> De : "Marshall Hunt " >>> A : "Leica Users Group" >>> Copie ? : >>> Sujet : Re: [Leica] Mark's 5.6 and be there >>> >>> >>> It is a modification of a motto from the early days of press >>> photography, >>> when you needed three hands and big pockets to use a Speed Graphic. >>> : >>> "f.6" set your Speed Graphic lens at 5.6 so you have some depth of field >>> when you estimate the distance. >>> >>> "and be there" be at the scene of the action; otherwise you can't get a >>> fast shot. >>> >>> >>> On Sat, May 18, 2013 at 3:25 AM, >>> wrote: >>> >>>> Mark repeatedly writes: >>>> >>>> >>>> F 5.6 and be there. >>>> >>>> >>>> >>>> What's YOUR rationale for shooting at 5.6? >>>> >>>> >>>> >>>> >>>> If it is about DoF it is completely irrelevant for it also depends on >>>> sensor size, but this you know. >>>> >>>> >>>> So what is it please? >>>> >>>> >>>> >>>> >>>> AMiti?s >>>> Philippe >>>> >>>> >>>> _______________________________________________ >>>> 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 > > > -- Mark William Rabiner Photography http://gallery.leica-users.org/v/lugalrabs/