Archived posting to the Leica Users Group, 2005/04/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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 >