Archived posting to the Leica Users Group, 2010/09/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At f4 with a 35 or 50 mm lens you get enough but not too much depth of field. I like that area. If the autofocus is fast enough and the viewfinder isn't too squinty this camera will be a must for me. Marty On Mon, Sep 20, 2010 at 6:09 PM, Mark Rabiner <mark at rabinergroup.com> wrote: > I can compromise at f4 fore sure Marty! > I grew up looking at countless pop photo and modern photo lens tests. And > sure many of them peaked way before f8. The curve curves but it does curve. > > And from what I know now every lens is made faster than the lens designers > would prefer them to be. They are as fast as they are because the marketing > people insist on it. As they are competing with the competition down the > street; Oberkochen. > > -------------------- > Mark William Rabiner > Photography > mark at rabinergroup.com > > >> From: Marty Deveney <benedenia at gmail.com> >> Reply-To: Leica Users Group <lug at leica-users.org> >> Date: Mon, 20 Sep 2010 15:05:06 +0930 >> To: Leica Users Group <lug at leica-users.org> >> Subject: Re: [Leica] Fuji's rangefinder sort of looking digital >> >> The .pdfs for the camera with the lens MTFs show clearly that the lens >> improves when stopped down from f2 to f4, but showing f4 as the second >> aperture stop on the MTF charts suggests strongly that it is at its >> best there and that further stopping down either does not improve its >> performance or makes it worse. >> >> Marty >> >> >> On Mon, Sep 20, 2010 at 2:40 PM, Mark Rabiner <mark at rabinergroup.com> >> wrote: >>> When ever I read or hear that stopping down a lens makes NO IMPROVEMENT I >>> take it with a bit of a grain of thought as from all I know this is >>> basic to >>> optics that some improvement is going to show itself when you this to any >>> lens. I think such statements is a wishful thinking extention off the >>> concept that if you pay enough money for a lens the wide open performance >>> will be nothing to be embarrassed about. Quite usable. And even stellar. >>> I >>> think stopping down ANY lens one or two can do nothing but but get rid >>> of a >>> few aberrations and contusions. Let alone actually get the thing you're >>> shooting in focus. I'm a f 5.6 and be there kind of guy for the most >>> part. >>> Sure I shot wide open when I need the extra narrow DOF for effect or >>> when I >>> need the shutter speed. Like when its dusk or indoors. >>> >>> -------------------- >>> Mark William Rabiner >>> Photography >>> mark at rabinergroup.com >>> >>> >>>> From: Peter Cheyne <geordiepete211 at yahoo.co.uk> >>>> Reply-To: Leica Users Group <lug at leica-users.org> >>>> Date: Mon, 20 Sep 2010 11:01:00 +0900 >>>> To: Leica Users Group <lug at leica-users.org> >>>> Subject: [Leica] ?Fuji's rangefinder sort of looking digital >>>> >>>> That 'rewind lever' on the front cold be to set the built-in ND >>>> filter. ?I suppose it slides in and out behind the lens. >>>> >>>> Looks like an elegant little camera. ?I hope the auto-focus is faster >>>> than the elegant little Fujifilm Klasse (f2.6, 38mm) I have. >>>> >>>> I think something got lost in translation here: >>>> ? "In addition, the lens features not only the large F2 aperture >>>> value, but also an optical architecture that maintains a high degree >>>> of resolution even when closed by 1 to 2 stops." ?Italics on 'even >>>> when closed by 1 to 2 stops.' ?I think they meant 'that gets even >>>> better', not 'even'. >>>> >>>> Peter Cheyne >>>> >>>> _______________________________________________ >>>> 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 >