Archived posting to the Leica Users Group, 2011/01/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]that's 42 mm or am I mistaken I still have two exakta bodies and a couple of lenses BTW - friends think I must have their old gear on my shelves :-) ph Le 2 janv. 11 ? 20:27, Jim Nichols a ?crit : > > Should have read "Pentax bellows". I must proof read more carefully. > > Jim Nichols > Tullahoma, TN USA > ----- Original Message ----- From: "Jim Nichols" <jhnichols at > lighttube.net > > > To: "Leica Users Group" <lug at leica-users.org> > Sent: Sunday, January 02, 2011 1:22 PM > Subject: Re: [Leica] IMG: My Ross Lens Project > > >> Hi Philippe, >> >> Thanks for the kind words. I had an old Exacta bellows, but Exacta >> adapters are very expensive. I bought the Pentax adapter on the >> auction site and used a "donor" lens to provide the M42 flange, so >> I put the whole thing together rather cheaply. >> >> Jim Nichols >> Tullahoma, TN USA >> ----- Original Message ----- From: "philippe.amard" <philippe.amard at >> sfr.fr >> > >> To: "Leica Users Group" <lug at leica-users.org> >> Sent: Sunday, January 02, 2011 1:14 PM >> Subject: Re: [Leica] IMG: My Ross Lens Project >> >> >>> G?nial ! >>> >>> And you're only telling this to me when I just sold my bellows .... >>> >>> Vick, where are you? >>> >>> Great job Jim. >>> Really. >>> >>> Bien amicalement >>> Philippe >>> >>> Le 2 janv. 11 ? 19:13, Jim Nichols a ?crit : >>> >>>> >>>> For about fifty years, I have had a few old lenses stashed away, >>>> mostly forgotten. The best of these is a Ross London No. 6 >>>> Symmetrical lens, which was manufactured around 1890, according >>>> to the SN. It has an 8-inch focal length and rotary Waterhouse >>>> stops equivalent to f/16 through f/64. These were manufactured >>>> in various focal lengths over a period of years to use on the >>>> wet plate and dry plate cameras also manufactured by Ross. >>>> >>>> The lens and flange are shown in this image: >>>> http://gallery.leica-users.org/v/OldNick/Ross+Lens+2.jpg.html >>>> >>>> I decided to see what this lens could produce. I fabricated a >>>> spacer/adapter, which has the Ross flange on the front, and an >>>> M42 flange on the back, to mount on a Honeywell Pentax bellows. >>>> http://gallery.leica-users.org/v/OldNick/Lens+Flange+to+M42+Adapter.jpg.html >>>> >>>> The lens and adapter were mounted on the bellows, as shown here. >>>> http://gallery.leica-users.org/v/OldNick/Lens+Adapted+to+Bellows.jpg.html >>>> >>>> The bellows assembly was mounted on my Olympus E-1 using an M42 >>>> adapter. >>>> http://gallery.leica-users.org/v/OldNick/Final+Assembly.jpg.html >>>> >>>> All of these photos were made with a Leica Elmarit-R 60mm Macro >>>> on my E-510. >>>> >>>> I tried a few hand-held photos this morning, when it is 32 deg >>>> F. and ice on the water, with a strong breeze. Most were >>>> unsteady, because of the cold. The best example is shown below, >>>> showing battle flags at a local Confederate Cemetery. This was >>>> made at ISO 200, 1/400 at f/16, RAW, converted to B&W using a >>>> PhotoPlugins converter. >>>> http://gallery.leica-users.org/v/OldNick/Flags+BW.jpg.html >>>> >>>> The bellows and spacer allow focusing from 15 feet to infinity. >>>> My next effort will be to get a set of M42 extension tubes to >>>> achieve closer focus. >>>> >>>> Comments and critiques welcomed. >>>> >>>> Jim Nichols >>>> Tullahoma, TN USA >>>> >>>> _______________________________________________ >>>> Leica Users Group. >>>> See http://leica-users.org/mailman/listinfo/lug for more >>>> information >>>> >>> NO ARCHIVE >>> >>> >>> >>> _______________________________________________ >>> 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 >