Archived posting to the Leica Users Group, 2011/11/02

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Subject: [Leica] 1.8 vs. 1.4!?!?
From: quantran101 at gmail.com (Quan Tran)
Date: Wed, 2 Nov 2011 21:12:04 -0700
References: <CACkqTDQ6YDBtnJNiOmSt3P5K_HtFtgEfPLAo37nGbCzTBRbNgw@mail.gmail.com> <CAD7872D.1641C%mark@rabinergroup.com>

Hi Mark,

I think the website meant round to the third. So the different is in the
rounding.


On Wed, Nov 2, 2011 at 8:47 PM, Mark Rabiner <mark at rabinergroup.com> 
wrote:

> 2/3's as a decimal is 0.6666.
> 0.7251 - 0.6666  = 0.0585
> Cant figure out what fraction that would be.
>
> Bottom line a 1.4 is for sure faster than a 1.8 not by an incremental
> amount
> like I thought.
>
>
>
>
> --
> Mark R.
>
>
> > From: Quan Tran <quantran101 at gmail.com>
> > Reply-To: Leica Users Group <lug at leica-users.org>
> > Date: Wed, 2 Nov 2011 19:36:00 -0700
> > To: Leica Users Group <lug at leica-users.org>
> > Subject: Re: [Leica] 1.8 vs. 1.4!?!?
> >
> > I found this: http://imaginatorium.org/stuff/stops.htm
> >
> > When I select "precised", it show 0.7251 stops
> > When I select "third", it gave me 2/3 stops.
> >
> > -Quan.
> >
> > On Wed, Nov 2, 2011 at 3:32 PM, Mark Rabiner <mark at rabinergroup.com>
> wrote:
> >
> >> I looked up f 1.8 vs. 1.4 thinking it was between a half and a quarter
> of a
> >> stop and they are saying its 2/3rds!?!?! Anybody know that that's true?
> >>
> >> Where is there a photo calculator that tells you these things?!?!?
> >>
> >> --
> >> Mark R.
> >> http://gallery.leica-users.org/v/lugalrabs/
> >>
> >>
> >>
> >> _______________________________________________
> >> Leica Users Group.
> >> See http://leica-users.org/mailman/listinfo/lug for more information
> >>
> >
> >
> >
> > --
> > Quan Tran.
> > blog: http://fluxlux.blogspot.com/
> >
> > _______________________________________________
> > 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
>



-- 
Quan Tran.
blog: http://fluxlux.blogspot.com/


Replies: Reply from photo.forrest at earthlink.net (Phil Forrest) ([Leica] 1.8 vs. 1.4!?!?)
In reply to: Message from quantran101 at gmail.com (Quan Tran) ([Leica] 1.8 vs. 1.4!?!?)
Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] 1.8 vs. 1.4!?!?)