Michael,
Your reference to an 1892 brass lens reminded me of my experience with a
lens from that period. Mine was by Ross London, and is marked 8-inch No. 6
Symmetrical. It has Waterhouse stops, with the largest being 1/2-inch in
dia., making it an f/16 lens. Rather than try to use my old 4x5 Speed
Graphic, I fitted it to a bellows and used it on my Olympus E-1. The images
linked below show the hardware and an image made with this setup.
The lens:
http://gallery.leica-users.org/v/OldNick/Ross+Lens+2.jpg.html
The assembly:
http://gallery.leica-users.org/v/OldNick/Final+Assembly.jpg.html
The image, made on a very cold day in January:
http://gallery.leica-users.org/v/OldNick/Mocking+Bird.jpg.html
Good luck with your vintage lenses.
Jim Nichols
Tullahoma, TN USA
----- Original Message -----
From: "Michael Wong" <michael1015@xxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Friday, July 06, 2012 2:58 PM
Subject: [OM] A shot with higher dilution for contrast control
>A shot at Tai Tong Country Park in Dec last year. The contrast was normal
> in sunny day of HK winter. I developed the film with HC110 + 1:20
> dilution, 20.5℃ 6.5mins to keep the contrast well for enlarging prints in
> darkroom.
>
> The lens was new purchased at that moment, 1892 design brass lens, Goerz
> Berlin Doppel-Anastigmat Serie III 210mm F6.8, small but quite heavy
> (compare with my other brass lenses).
> http://farm8.staticflickr.com/7172/6603716713_860922320e_b.jpg
>
> Kodak TMAX100, 4x5 film, scanned by Epson V700.
>
>
> Regards,
> Michael
> --
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>
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