[LargeFormat] Ross APO Process 12" f9 Lens

[philip Lambert]

Ross or Barnett Ensign Ross were well known about fifty years ago and made
Ross Xpres and lesser lenses for amateur cameras and some full size
professional lenses. The Xpres is a 4 glass evidently and I expect resembles
a Xenar. I had one and it was sharp but I haven't used a LF one. Philip
----- Original Message -----
From: "Clive Warren" <cocam@cableinet.co.uk>
To: <largeformat@f32.net>
Sent: Wednesday, December 12, 2001 11:38 AM
Subject: [LargeFormat] Ross APO Process 12" f9 Lens


> Just dipped into my lens box and found a Ross APO Process 13" f9 lens
> that is mounted in brass barrel and has an aperture diaphragm that
> goes to f64 and a Waterhouse stop slot. There is no coating but this
> shouldn't be too much of a problem as there are only about 6 elements
> (judged from the reflected light bulb test).
>
> The aperture range is adjacent to a range of distance marked in
> inches rather than mm so it must be fairly old.
>
> Does anyone have an idea of the age of the lens or some history of
> the Ross (London) lens company? I would imagine it will be a good
> performer. Currently looking at all sorts of portraiture options......
>
> Cheers,
>         Clive
>
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