Photography for the ScientistCharles Edward Engel |
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angle aperture appear applications axis beam biol blue bulb camera Chapter characteristics colour contrast copy correct cover curve density depth described designed detail diameter direct distance effect emulsion enlarger equal equipment example exposure factor field Figure film filter flash fluorescence focal length focus focusing give given glass greater illumination incident increase infra-red intensity lamp lens lenses light lines magnification material measured methods mount necessary negative normal object obtained optical original photogr photographic placed plane positive possible practice principles processing produce radiation range rays recording reduced reference reflected refractive relative reproduced screen Section Section IV sensitive sharp shows silver simple slides specimen speed standard suitable surface Table technique temperature transmission transmitted tube ultraviolet usually varies visible wavelength