Archived posting to the Leica Users Group, 2009/07/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Gene Duprey wrote: >>> What is the modification? I would like to use my 14198 0n other lenses. <<< If your other lenses are all Leicaflex-compatible the only modification you need to do is remove the collar that covers the 60mm lens' aperture ring. On early models of the 14198 the collar is held in place with a screw and cement. Late models omit the screw. The collar can be removed with persuasive force applied by vice-grip pliers (destroys the collar). If you want to use R-only or ROM lenses you will also need to enlarge the inner diameter of the flange and (often) trim the lock button's inner side. Or send it to DAG and tell him you want to use ROM lenses on it. Once the 14198 is modified: 1) with auto-diaphragm lenses of any cam configuration, set the lens' aperture ring to the smallest aperture, i.e., f/16 or f/22 and use the aperture ring on the 14198 to adjust exposure. The markings on the 14198 aperture ring will only make sense if the lens is f/2.8, otherwise think of the ring as "full aperture" when it's at f/2.8, "one stop down" when it's at f/4, etc. You'll retain automatic diaphragm and whatever full-aperture metering your 14198 supports (either 2-cam or 3-cam). 2) with the f/6.8 Telyts or any other lens with a manual diaphragm, set the 14198's aperture ring at f/2.8, ignore what the viewfinder tells you the aperture is, and use the lens's diaphragm instead. A couple of limitations: the inner light baffles will cause dark corners on full-frame cameras when using a long-focus lens like the f/6.8 Telyts. Not a problem with your DMR. the inner light baffles also interfere with a few lenses so that these lenses cannot be used with the 14198. The ones I've found will interfere are the 50mm Summilux-R E55 and the 2x APO-Extender-R. The inner light baffles can be removed at the risk of increased flare from the shiny aperture control parts that will be exposed. You should be able to use your 560mm lens with the 14198 without any modification. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com Original message from "wildlightphoto at earthlink.net" <wildlightphoto at earthlink.net>: -------------- > Jim Nichols wrote: > > >>> > I'm confused by the second photo. Does the adapter go between the aperture > ring and the front portion of the lens? This photo makes it appear that the > aperture ring is still closest to the camera. > <<< > > The 14198 extension tube has an aperture ring that is used instead of the > lens' aperture ring. The extension tube has a collar at the lens end that > covers the lens' aperture ring; the lens' aperture ring is set to f/22 > before connecting the lens and extension tube. > > The more recent Macro-Adapter-R (14256? or the ROM version 14299?) does not > have its own aperture ring, using the one on the lens instead. The 14198 > is set up with its own aperture ring so that you can meter at full aperture > on the Leicaflex SL and SL2. The Macro-Adapter-R in its original form > cannot be used on the Leicaflexes. > > The 14198 can only be used with the 60mm Macro lens (with a few exceptions) > while the Macro-Adapter-R can be used with many lenses and meters at full > apereture with any R body. Since I use both R and Leicaflex bodies, and I > use the extension tube with more than just the 60mm Macro-Elmarit-R, I've > worked out a modification to the 14198 to make it more universal. > > Doug Herr > Birdman of Sacramento > http://www.wildlightphoto.com > > > Jim Nichols > Tullahoma, TN USA > ----- Original Message ----- > From: "David Freedman" > To: "Leica Users Group" > Sent: Tuesday, July 21, 2009 5:34 PM > Subject: Re: [Leica] Leica Macro-Elmarit-R 60mm f/2.8 Lens > > > > The 60mm Macro-Elmarit lens focuses continuously from infiity to 1/2 life > > size; 1:1 with an adapter. > > > > See here: > > > > At closest focusing distance: > > > > http://farm4.static.flickr.com/3312/3658659280_d5739ac779_o.jpg > > > > With the 1:1 adapter: > > > > http://farm4.static.flickr.com/3317/3658659318_ce9c9bdd5c_o.jpg > > > > Dave F. > > > > _______________________________________________ > > 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 > > -------------------------------------------------------------------- > mail2web.com ??? 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