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 13:38:28 -0600
References: <B02EFA5D2668406A87E9269C1780B93B@jimnichols><C08DDDBC-9B1C-4347-BB59-D8F37465DF47@sfr.fr><3A2FC1936B434129A54B4B0777382D75@jimnichols><B06C6E5553B14BA7B89E16AC94F55586@jimnichols> <8AB56CF5-50EC-4550-BBBF-4AE214D54677@sfr.fr>

Yes, 42mm, the standard used on Spotmatics.
I have an Exa body that still works fine.  My Exacta shutter gave up the 
ghost, and one of my better lenses was returned as "parts no longer 
available".  My Pentax lenses have held up much better.

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 1:31 PM
Subject: Re: [Leica] IMG: My Ross Lens Project


> 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.
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>>>>
>>>>
>>>
>>>
>>>
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>>> See http://leica-users.org/mailman/listinfo/lug for more information
>>>
>>
>>
>>
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>>
>
>
>
> _______________________________________________
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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)
Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: My Ross Lens Project)
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)