147. OXFORD STREET.
ROSS'S PHOTOGRAPHIC PORTRAIT AND LANDSCAPE LENSES.—These lenses give correct definition at the centre and margin of the picture, and have their visual and chemical acting foci coincident.
Great Exhibition Jurors' Reports, p. 274.
"Mr. Ross prepares lenses for Portraiture having the greatest intensity yet produced, by procuring the coincidence of the chemical actinic and visual rays. The spherical aberration is also very carefully corrected, both in the central and oblique pencils."
"Mr. Ross has exhibited the best Camera in the Exhibition. It is furnished with a double achromatic object-lens, about three inches aperture. There is no stop, the field is flat, and the image very perfect up to the edge."
A. R. invites those interested in the art to inspect the large Photographs of Vienna, produced by his Lenses and Apparatus.
Catalogues sent upon Application.
A. ROSS, 2. Featherstone Buildings, High Holborn
PHOTOGRAPHIC PICTURES.—A Selection of the above beautiful Productions may be seen at BLAND & LONG'S, 153. Fleet Street, where may also be procured Apparatus of every Description, and pure Chemicals for the practice of Photography in all its Branches.