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LENSES—R. & J. BECK, 68, Cornhill, London.
THE OPTICAL
< | — JOURNAL =| PHOTOGRAPHIC ENLARGER.
Vol. 2.—No. 16. SEPTEMBER 1, 1890. Price One Penny.
PERKEN, SON & RAYMENT, ® "*[cabon"°8™ “OPTIMUS.”
Each Magic ae is efficient for exhibitions. The Lens ae crisp definition, being a superior Achromatic Photographic Combination (large diameter back lens), with rack and pinion. [t is fitted to a telescopic lengthening tube, so gaining increased focal accommodation. The Condenser is composed of two plano-convex lenses of 4 inches diameter. The refulgent lamp has 3 wicks, (or 4 wicks 2s. extra,) yielding a brilliantly illuminated picture.—Each is compile in box.
Perforated Russian Iron Body, Brass Sliding Tubes, 50s.
Mahogany outside Body,
Russian Iron Body, 2 Panelled Door, Brass
Brass Sliding Tubes,
Mahogany outside Body, Japanned Metal Stages and
Japanned Metal
. 30s. Sliding Tubes, 42s. 45s' ‘OPTIMUS’ BI-UNIAL LANTERN. |, for. ‘OPTIMUS’ TRIPLE LANTERN. Panelled Mahogany Body, and moulded foot, picked out with The Top Lantern may he used separately with Oil Lamp. black, Japanned stages and tubes, Achrontatic PhotoPanelled Mahogany Body, Moulded foot picked out with graphic Front Lens, compound condensers. £512 0 black, Brass Stages and ane Achromatic Front malin pitto ditto with brass stages and sliding ‘tubes ~ 8 8.0 Compound Condensers ...... ie . « £140 0
THE BRITANNIA WORKS CO..
ILFORD, LONDON, E.
SOLE MANUFACTURERS OF THE
‘ILEORD" PLATES,
Which have the Largest Sale of any Plates in the World.
For Winter Work use only
ILFORD BROMIDE PAPERS, for enlargements or contact printing. Rapid or Slow, rough
or smooth. Give finest detail, and best engraving black Tones.
ILFORD ALPHA PAPER, to replace albumenized paper. Prints by gaslight. Any colour from black to red. Unequalled brilliancy.
ILFORD “ALPHA” LANTERN PLATES, the most successful ever introduced. A perfect plate.
‘SALW 1d Pl yNOBHOOS:
Stages, Sliding Tubes, 8s.
<— W)| A Magazine of Popular Science for the Lecture-room and =
Edited by J. HAY TAYLOR. the Domestic Circle. sg aa
EDWARDS
USE tHe “KODAK” ror LANTERN NEGATIVES.