Archived posting to the Leica Users Group, 2005/04/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Some similar ones here: http://users.telenet.be/philippe.orlent/website/ > From: eric <leica_korenman@hotmail.com> > Reply-To: Leica Users Group <lug@leica-users.org> > Date: Wed, 13 Apr 2005 06:28:17 -0400 > To: Leica Users Group <lug@leica-users.org> > Subject: Re: [Leica] Macro Comparison Leica V. Yashica > > Actually one of my favorites - but freaks out my wife. > Eric > > -------------------------------------------------- > www.faneuil.net > > ----- Original Message ----- > From: "Philippe Orlent" <philippe.orlent@pandora.be> > To: "Leica Users Group" <lug@leica-users.org> > Sent: Wednesday, April 13, 2005 6:27 AM > Subject: Re: [Leica] Macro Comparison Leica V. Yashica > > >> Nice, but I like this one even better: >> >> http://www.faneuil.net/2004/slides/01.html >> >> >>> From: eric <leica_korenman@hotmail.com> >>> Reply-To: Leica Users Group <lug@leica-users.org> >>> Date: Wed, 13 Apr 2005 06:24:31 -0400 >>> To: Leica Users Group <lug@leica-users.org> >>> Subject: Re: [Leica] Macro Comparison Leica V. Yashica >>> >>> just my 2 cents - trying to reuse an old image I guess: >>> 100 macro elmar wide open: >>> http://www.faneuil.net/2004/slides/05.html >>> (warning: artsy shot of crying kid) >>> >>> Eric >>> >>> >>> ----- Original Message ----- >>> From: "Mark Rabiner" <mark@rabinergroup.com> >>> To: "Leica Users Group" <lug@leica-users.org> >>> Sent: Wednesday, April 13, 2005 1:11 AM >>> Subject: Re: [Leica] Macro Comparison Leica V. Yashica >>> >>> >>>> On 4/12/05 9:33 AM, "Douglas Sharp" <douglas.sharp@gmx.de> typed: >>>> >>>>> Hello everyone, >>>>> >>>>> Only one third Leica and no Rollei at all. It may , however, be of >>>>> interest to those of us who like optical excellence whatever the source >>>>> may be. >>>>> >>>>> >>>>> 2 full-frame shots: taken with a Macro-Elmar 4/100mm and a >>>>> Yashica ML 2,8/55mm Macro both at f8, Canon 20D at ISO 100, tripod >>>>> mounted, daylight. >>>>> >>>>> http://gallery.leica-users.org/album150/Leicaf8_full_frame >>>>> http://gallery.leica-users.org/album150/CY_full_frame >>>>> 2 centre crops from the same shots >>>>> http://gallery.leica-users.org/album150/Leicaf8 >>>>> http://gallery.leica-users.org/album150/CY_f8 >>>>> >>>>> I think that the resolution of the Yashica is superior but the clour >>>>> rendition of the Leica is better (richer). >>>>> Just to make sure that the lenses were comparable they were both >>>>> cleaned, front and rear elements, before taking these. >>>>> I ran the test through 5 times and got the same results for f8 and for >>>>> other apertures, refocussing each test series to eliminate any possible >>>>> focussing errors, and picked the best of each run. Maybe I got a duff >>>>> Elmar, this difference in quality is surprising to say the least. >>>>> Cheers >>>>> Douglas >>>>> >>>>> BTW it's a Miners Safety Lamp >>>>> >>>>> >>>> >>>> >>>> Boy oh Boy Doug and yous guys! >>>> >>>> The thin plane of focus on the macro Elmar shot is at the far right edge >>>> of >>>> the frame. >>>> Its certainly to the right of the "S" of "lamps" and the "8" of the " >>>> B/28" >>>> I'm not even sure that true point or total plane of focus is even IN the >>>> frame. >>>> It just might be on the right half of the "8" itself but my hunch is its >>>> a >>>> tad in front of it. Towards us. >>>> In the air. >>>> >>>> The focus with the Yashica shot is further left on the "P" of "lamps". >>>> The "m" is behind the plane of focus >>>> And the "S" is in front of it. >>>> >>>> So if we then look at THAT area in the macro Elmar shot we think its >>>> "sharper" then the macro Elmar. If we didn't look at the rest of the >>>> shot. >>>> It's not where the very narrow plane of focus IS on that shot. >>>> It's way to the left of it by the distance of 2 or 3 letters or numbers >>>> in >>>> the shot. >>>> >>>> The DOF in such a shot is about an 8th of an inch as we can see. >>>> a shot on a curve like this illustrates such a thing. >>>> >>>> I cant believe this crazy test has got all you guys fooled! :) >>>> >>>> On a test like this you'd have to bracket your focusing to make them >>>> both >>>> match up. But it could easily be done with some bracketing. You barely >>>> breath on the lens to change the focus by several millimeters. You just >>>> look >>>> at it funny and it will shift a full letter over. >>>> :) >>>> >>>> >>>> >>>> Mark Rabiner >>>> Photography >>>> Portland Oregon >>>> http://rabinergroup.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 >>> >> >> >> _______________________________________________ >> 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 >