Archived posting to the Leica Users Group, 2011/01/02

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Subject: [Leica] IMG: My Ross Lens Project
From: jhnichols at lighttube.net (Jim Nichols)
Date: Sun, 2 Jan 2011 13:22:39 -0600
References: <B02EFA5D2668406A87E9269C1780B93B@jimnichols> <C08DDDBC-9B1C-4347-BB59-D8F37465DF47@sfr.fr>

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
>>
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>>
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Replies: Reply from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: My Ross Lens Project)
Reply from philippe.amard at sfr.fr (philippe.amard) ([Leica] IMG: My Ross Lens Project)
Reply from piers at hemy.org (Piers Hemy) ([Leica] IMG: My Ross Lens Project)
In reply to: Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: My Ross Lens Project)
Message from philippe.amard at sfr.fr (philippe.amard) ([Leica] IMG: My Ross Lens Project)