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

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] IMG: My Ross Lens Project
From: jhnichols at lighttube.net (Jim Nichols)
Date: Sun, 2 Jan 2011 13:16:02 -0600
References: <B02EFA5D2668406A87E9269C1780B93B@jimnichols> <DEF3E90B-CF67-4FCB-B242-65B5F767E934@gmail.com>

Thanks, Lluis.

Jim Nichols
Tullahoma, TN USA
----- Original Message ----- 
From: "Lluis Ripoll" <lluisripollquerol at gmail.com>
To: "Leica Users Group" <lug at leica-users.org>
Sent: Sunday, January 02, 2011 1:11 PM
Subject: Re: [Leica] IMG: My Ross Lens Project


> Fantastic Jim,
>
> I can't believe, as it look it seems very good quality. Good work and  yiu 
> get a good new toy!
>
> Saludos
> Lluis
>
>
>
> El 02/01/2011, a las 19:13, Jim Nichols escribi?:
>
>> 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
>
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>
> 




In reply to: Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: My Ross Lens Project)
Message from lluisripollquerol at gmail.com (Lluis Ripoll) ([Leica] IMG: My Ross Lens Project)