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[OM] IMG: My Ross Lens Project

Subject: [OM] IMG: My Ross Lens Project
From: "Jim Nichols" <jhnichols@xxxxxxxxxxxxx>
Date: Sun, 2 Jan 2011 12:13:11 -0600
Cc: Olympus Camera Discussion <olympus@xxxxxxxxxxxxxxxxx>
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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