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2
Content available Statyw do wykonywania zdjęć panoramicznych
100%
PL
Do czasu powstania fotografii cyfrowej efekt pracy fotografa stawał się widoczny dopiero na etapie wywoływania wcześniej wykonanych zdjęć. Aparaty cyfrowe zniosły tę niedogodność, wciąż jednak istnieją dziedziny fotografii wymagające od fotografującego dużej wyobraźni. Jedną z takich dziedzin są zdjęcia panoramiczne.
RU
Разработан метод позволяющий получить на одном кадре фотопленки изображение предмета видимое со стороны камеры и с недоступной для камеры стороны. Оба изображения не являются обратными.
EN
The method enabling to get in one frame the photographic material pictures from the side of the camera and from the side beyond the camera reach has been worked out. Both pictures are not reverse.
4
Content available remote Modelling of edge effects taking account diffusion phenomenon
75%
EN
The results of simulation model examination of the occurrence intensity of edge effects show that they are dependent on time, reaction rate constant, substrate and product concentration, layer thickness and exposure intensity. For this purpose, a model development process was applied, taking account of the kinetic reaction equation as well as the diffusion equation. The results obtained are represented in the form of three-dimensional plots where the intensity of edge effect occurrence is shown as a function of two variables.
RU
Сконструирован испытательный стенд для фотографической регистрации изменений наклона туловища и головы тракториста в соответствии с наклонами трактора. Симулировали наклон трактора при работе на склоне или при вспашке (одно колесо в борозде). Трактор наклоняли вперед (до 18°), назад (до 18°) и вбок (до 15°) делая съемки через каждых 30. После элиминирования погрешностей в соответствии с разработанным способом расчетов и установкой фотоаппарата в соответствии с наклоном трактора определяли связь принимаемого трактористом положения тела с углом наклона склона.
EN
An observation stand for the photographic registration of changes in trunk and head inclinations of the tractor operator in reaction to inclinations of the tractor has been constructed. Tractor inclinations at its work on slope or at ploughing (one wheel running in the furrow) were simulated. The tractor was inclined forwards (to 18° ), backwards (to 18° ) and sidewards (to 15°) and the respective photographs were taken at every 3°. Upon eliminating errors in accordance with the worked out calculation way, at setting the camera in relation to the inclined tractor, the relationship between the operator's body position assumed and the slope inclination angle was determined.
13
Content available remote Model examination of the reflex-halation in single-layer light-sensitive system
51%
EN
The results of computer simulation of the effects of light scattering in a system composed of single silver halide light-sensitive layer coated on a transparent base are presented. The scattered light penetrating the base film can suffer from internal reflection from its lower surface and thus contributes to some loss of image sharpness. This effect, called reflex-halation, is very disadvantageous. The qualitative dependence of the MTF curve of the system on its geometric and optical parameters is examined. It has been shown, among others, that the deterioration of image quality is stronger for the thinner light-sensitive layer and is more elongated for the elementary scattering indicatrix of silver halide crystals. The result is similar to that obtained in the case of crossover effect, though in the presence of the antihalation layer the observed dependences are opposite to those just mentioned.
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