Hind, H. Lloyd (Herbert Lloyd), Randles, W. Brough (William Brough) · London : G. Routledge & sons, ltd · leaf 167
on to objectives, but made to concentrate light upon the object through the thickness of a slide. Chromatic Condensers — The Spectacle Lens. — The sim- plest substage condensers are double convex lenses, such as the “ Spectacle ” lenses of Zeiss, and are very suitable for use with the small… … Fig. 33 ABBE COKDEXSEK still maintains its j^osition as the most frequently used substage illuminating apparatus, and as made by firms of repute it is a very efficient condenser, although far from aplanatic — its aplanatic cone is at the most 0-65 — and only corrected for one colour. It is supplied…
Color photography · Photomicrography
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