10 pages matching Kohler principle in this book
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Medium and highmagnification photomicrographs
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absorbing adjustment Agfacolor Agfacolor CN 17 annular diaphragm aperture diaphragm apochromat applied artificial light film ASA or 16 attached camera barrier filters beam birefringence blue BLUISH-GREEN bulb camera length carbons centre chromatic aberration CN 17 negative colour cast requires colour developers colour distortion colour negative colour photographic materials colour photomicrography colour temperature compensator contrast correction cover glass dark-field illumination daylight film daylight type Eastmancolor ensure equipment eyepiece field diaphragm fluorescence microscopy fluorite focal length green high-pressure immersion incandescent incident illumination Jena Kodak Wratten Kohler principle layer Leitz lens lenses light source low-magnification low-power low-voltage magenta magnification manufacturers mercury-vapour lamp methods micro microscope mirror negative film negative miniature film Oberkochen obtained optical Orwocolor NC 16 phase plate phase-contrast photosensitive material Polacolor polaroids prints processing radiation refractive refractive index reversal films SENSITIVE sheet film specimen Stain substage condenser tube viewfinder visible visual wave-lengths Wetzlar Wratten filter xenon lamps yellow Zeiss