Archived posting to the Leica Users Group, 2004/05/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have read that the eye has a focal length about the same as a Minox lens (15mm). The article explained that Minox pix have about the same DoF as human vision - depends on pupil dilation I suppose. Frank On 18 May, 2004, at 01:26, Mark Rabiner wrote: > On 5/17/04 8:52 AM, "Slobodan Dimitrov" <s.dimitrov@charter.net> wrote: > >> The f1.4 at 20-24" does for me what the f1 even at 1 meter can't do. >> That >> is, give me an image that is consistently well controlled with regard >> to >> isolation of focus area and composition. >> It's a sure bet that eventually I'll get the 85mm f1.4. >> S. Dimitrov >> >> >>> From: "B. D. Colen" <bdcolen@earthlink.net> >>> Reply-To: Leica Users Group <lug@leica-users.org> >>> Date: Sun, 16 May 2004 10:53:20 -0400 >>> To: "'Leica Users Group'" <lug@leica-users.org> >>> Subject: RE: [Leica] Re: PsAW >>> >>> Actually, I hate the razor-thin dof with the noctilux, find it >>> unrealistic and distracting - particularly in daylight situations it >>> creates an images that looks as though it's constructed by layering >>> paper cutouts. I'm absolutely convinced that if the noct somehow had >>> reasonably depth of field at f 1 - say2-3-4-6 inches, people who had >>> paid whatever for the lens would rave out about...The non-existant >>> dof >>> is, to my way of viewing, a real draw-back, particularly as there is >>> absolutely no real-world situation, other than perhaps threading a >>> needle, where that's what the human eye perceives..so I'm reasonably >>> happy with f 2 - at smaller aps there is just too damn much dof... >>> >>> -----Original Message----- >>> From: lug-bounces+bdcolen=earthlink.net@leica-users.org >>> [mailto:lug-bounces+bdcolen=earthlink.net@leica-users.org] On Behalf >>> Of >>> Eric >>> Sent: Sunday, May 16, 2004 8:27 AM >>> To: leica-users@mejac.palo-alto.ca.us >>> Subject: [Leica] Re: PsAW >>> >>> >>> B.D.: >>> > When I look at the front of my desk anything past the front edge at > all goes > quickly out of focus. With marvelous dancing Bokeh like a field of > wildflowers > With the Noct. f1 at 20 thirty feet away is no longer that effect > > Right now it is raining with the sun out. As I stare at my rosebush 40 > feet > away between the sidewalk and the street the other side of the rose > bush is > out of focus and it's only a couple of feet away. I think my Noctilux > has > more DOF than that. > Don?t underestimate the selectiveness of human vision BD. Try looking > around > you really only see one thing at a time. > Chipmunks though see in f64 they need this depth for accurate acorn > gathering. > Those with tunnel vision quickly went the way of the albino flying > squirrel. > > Mark Rabiner > Photography > Portland Oregon > > > > New-improved > http://rabinergroup.com/ > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >