Photomicrography in Theory and Practice

achromatic objectives adjustment angle angular aperture aperture aplanatic apochromatic Bausch and Lomb blue camera chromatic aberration color condenser diaphragm corrected cover glass Cover-Glass Thickness dark-field developer diameter diffraction diffusing plate distance Eastman effect entrance pupil equation Etching examined exit pupil exposure eyepiece fibers field depth field diaphragm field of view Figure filament film filters focal length focal plane focal point focus focused give glare ground glass high-power Homal illumination by Method immersion inches iris diaphragm lamp house Leitz lenses light rays light source liquid low-power lumens magnification measured micrometer microscope tube millimeter negative object field obtained ocular optical over-correction particles photographic photomicrographic picture position principal axis prism projection lamp refractive index resolution shown in Fig shows specimen spectrum spherical aberration stage stained substage surface test slide tion tube length visual wave wavelength Wratten Wratten filter Zeiss