Congo lens

[tonyowen]

I have an E-CONGO J.R 150mm f4.5 lens.
All of the links I can find on Google to Congo are invalid.
Although this is an enlarging lens does, anyone know what its covering circle is; and is it any use as a 4x5 taking lens?
regards
Tony

[Andrew Plume]

Tony, Hi

I've just sent you two pm's with details extracted from the 'LVM'

regards

Andrew

[tonyowen]

Tony, Hi i've just sent you two pm's with details extracted from the 'LVM'
regards Andrew

Andrew, received and thank you
regards
Tony

[Andrew Plume]

Thx indeed Tony, happy to have helped

regards

Andrew

[Chuck Pere]

This link seems to still work: http://web.archive.org/web/20120419205958/http://www.cosmonet.org/congo/index_e.html

[tonyowen]

This link seems to still work: http://web.archive.org/web/20120419205958/http://www.cosmonet.org/congo/index_e.html

It does thank you, but no mention of the e-congo lens {that I've spotted)
regards
Tony

[orgraph]

Use 90/6.3; 120/6.3;400/8 Light, small, high-quality image

[Dan Fromm]

It does thank you, but no mention of the e-congo lens {that I've spotted)
regards
Tony

It is an enlarging lens, not a taking lens.

[tonyowen]

It is an enlarging lens, not a taking lens.

Yes I stated this on my OP[ing], the questions were does anyone know the image circle and is it [possibly] any use as a taking lens.
ps the above link does include enlarging lenses BUT NOT the 150mm f4.5 lens I have.

regards
Tony

[Mark Sampson]

Apparently it's not a well-known lens, but it's still worth a try. I'd cobble up a lens board and hot-glue the lens to it. I assume that it's not in a shutter, so make a few test exposures when the light is low enough to use a hat over the lens.
One @ f/32, one @ f/16, one wide open. One series at infinity focus, and one close-up. Six sheets of film, one processing run, and you'll have your answer.

[Bob Salomon]

Yes I stated this on my OP[ing], the questions were does anyone know the image circle and is it [possibly] any use as a taking lens.
ps the above link does include enlarging lenses BUT NOT the 150mm f4.5 lens I have.

regards
Tony

You can easily determine the coverage with a piece of cardboard. Turn off all lights in the room, darken the windows, point the lens out the window at a distant object and hold the white cardboard up behind the lens. Move the board towards and away from the lens till the object is sharp on the board. That’s what it covers. Stop down to see how large the circle gets.