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Camera model : EXP200150

Quantité : caddie Ajouter au devis


Référence : EXP 200 150



Camera model : EXP200150 2/4

The didactic digital camera model is an excellent tool for understanding how a camera works. The lenses, with fixed and variable focal lengths, are used to implement the diaphragm to allow depth of field and understanding of the optical zoom notion, while the software studies the digital zoom, the white balance setting, as well as the Bayer filter. Usable on a bench with a 10mm rod or on a camera stand, the model has a reflex viewer where each item is visible and identifiable. Its comprehensive user manual will provide you with all the information you need to use your camera in your hands-on exercises and end of year projects.

BAYER FILTER

A Bayer matrix, also known as a Bayer filter or a Bayer mosaic, is a type of Color Array, i.e. a matrix of coloured filters placed in front of the digital sensor to record photographs in colour. This matrix consists of 50% green filters, 25% red filters and 25% blue filters. A useful camera pixel is thus in reality a composition of 4 pixels. The “Photoo” software, supplied with the camera model, highlights this filter and helps students understand how colour functions on the sensor.

OPTICAL ZOOM - DIGITAL ZOOM

An optical zoom is possible with a variable focal length lens. A ring moving several groups of ocular lenses within the lens,
is used to modify continuously the resulting focal distance and thus the magnification, thus modifying the angle of view
covered by the lens and the size of the image elements. A “digital zoom”, made possible by the Photoo software, simulates a change in focal distance by image resizing techniques. A word of warning however : an overly large
digital zoom shows the shape of the pixels. You can observe this with the software by zooming up to 32 times.

DEPTH OF FIELD

For a given use and setting of a camera, depth of field corresponds to the zone of the space in which the subject to be photographed must be placed in order to obtain an image that the eye (or sensor) will accept as sharp. The size of this zone depends on the shot parameters, and, in particular, the focus distance, diaphragm opening, and sensitive surface dimensions. The larger the depth of field, the more it includes the subject in its environment. On the other hand, the smaller the depth of field, the more it isolates the subject. Using the camera model, you can easily implement all these parameters on a limited area (simulated macro), for example with a small figurine.

SUBJECTS APPROACHED

»»Reflex viewer study
»»Aperture, exposure, focusing
»»Depth of field
»»Bayer filter
»»White balance setting
»»Optical zoom – Digital zoom
»»Studying a digital image, compression
»»RAW file
»»Studying photographic lenses


NECSSARY EQUIPMENT

Reference Description quantity
POF010810 Pedagogical Model of a digital camera 1
POF010110 Prismatic optical bench, 2 m 1
POF010124 Optical rider 2
POD010110 Basic component holder 1
POD069140 Lantern with dimmer 1
POD002192 Half-moon stand 1
POD066500 40-mm diam. millimétric token 1
POD060260 Prism holder 1
POD010002 Millimetric metal screen 1
POD061932 Dichroïc filter, red 1
POD061933 Dichroïc filter, green 1
POD061934 Dichroïc filter, blue 1

Computer is required


Camera model : EXP200150 3/4

Quantité : caddie Ajouter au devis


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