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

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Subject: [Leica] IMG: My Ross Lens Project
From: lluisripollquerol at gmail.com (Lluis Ripoll)
Date: Sun, 2 Jan 2011 20:11:49 +0100
References: <B02EFA5D2668406A87E9269C1780B93B@jimnichols>

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.
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Replies: Reply from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: My Ross Lens Project)
In reply to: Message from jhnichols at lighttube.net (Jim Nichols) ([Leica] IMG: My Ross Lens Project)