Archived posting to the Leica Users Group, 2010/04/15
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On the R front: of the manual lenses I use on the G1, the best performer is my Elmarit-R 35,, which is noticeably sharper and more subtle than the older M lenses I use. On Thu, Apr 15, 2010 at 10:48 AM, Jim Nichols <jhnichols at lighttube.net>wrote: > Hi Richard, > > I use Leica-R lenses on my Olympus E-1. Is there a lot of difference > between the Summicron-R and the Summicron-M design? > > Jim Nichols > Tullahoma, TN USA > ----- Original Message ----- From: "Richard Taylor" < > r.s.taylor at comcast.net> > To: "Leica Users Group" <lug at leica-users.org> > Sent: Thursday, April 15, 2010 9:42 AM > > Subject: Re: [Leica] M Lenses on GF-1 > > > The best way to think about this is to think of each pixel as a tiny >> bucket with steep sides and the light sensitive area at the bottom. Light >> must go straight in in order to be detected. Light arriving at anything >> other than almost straight in is either lost or scattered. >> >> That's why the sensors in the M8 and M9 have the offset lenses on top of >> the sensor. >> They allow the sensor to respond better to the off-axis light coming out >> of M-type lenses. >> >> SLR lenses are usually retrofocus designs that send the light close to >> straight in to the sensors and therefore work better on the micro 4-3rds >> cameras than M lenses do. >> >> Dick >> >> (Who works with sensors like these in the infrared for space missions.) >> >> >> >> On Apr 15, 2010, at 9:17 AM, Simon Ogilvie wrote: >> >> I'm also perplexed at how Contax G lenses can be materially better on >>>> Micro Four Thirds than are Leica M lenses, or even CV lenses for that >>>> matter. While I haven't used all on Micro Four Thirds I have used them >>>> all on film and for the most part they're all pretty good. Thus I'm >>>> curious as to why the performance would be so different on Micro Four >>>> Thirds. What kind of adapters are you using? >>>> >>> >>> I agree - one of the primary reasons I bought into the 4/3 system was >>> because it allowed me to use my Leica M (and Voigtlander) lenses which >>> don't see much use any more as I shoot very little film these days. >>> The results using these lenses were very disappointing. The Panasonic >>> 14-45 covers the range of nearly all of my M lenses anyway, so as the >>> results seem better and it's much more convenient to use, I stick with >>> the zoom. I was surprised that the results from the Contax G lenses >>> looked so much nicer. Why this is the case when the Leica lenses are >>> so nice with film I cannot explain. The adapters are the Voigtlander >>> one for the Leica-M lenses, and an adapter imported from Hong Kong for >>> the Contax G with a little manual focus wheel that engages with the >>> focussing drive on the lenses. >>> >>> >>> >> >> _______________________________________________ >> 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 >