Difference between revisions of "Scanner camera"
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|image_text= same [[field camera]] with other scanner backs | |image_text= same [[field camera]] with other scanner backs | ||
|image_by= Antonio Giordano | |image_by= Antonio Giordano | ||
| + | |image_rights= (C) | ||
| + | }}{{{brl}} | ||
| + | {{Flickr_image | ||
| + | |image_source= http://www.flickr.com/photos/branavojnovic/7658146192/in/pool-camerawiki | ||
| + | |image= http://farm9.staticflickr.com/8293/7658146192_839aee5cf8_m.jpg | ||
| + | |image2_source= http://www.flickr.com/photos/branavojnovic/7658142962/in/pool-camerawiki | ||
| + | |image2= http://farm9.staticflickr.com/8168/7658142962_771421e0b4_n.jpg | ||
| + | |image_align= left | ||
| + | |image_text= 8x10inch camera | ||
| + | |image_by= Branislav Vojnovic | ||
|image_rights= (C) | |image_rights= (C) | ||
}} | }} | ||
Revision as of 13:54, 10 September 2012
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| homemade studio camera on two tripods image by Andesh Næss (Image rights) |
A scanner camera is a digital camera which uses no rectangular image sensor chip. Instead it uses a narrow long scan sensor bar with one row of light sensitive pixels on its surface for black&white scans or three rows instead for color scans, one pixel row for green, one for blue and one for red light. Scanning sensors may be used in professional repro cameras. Adventurous amateur tinkerers have also created their own scanning cameras.
The principle of the camera is that the sensor bar is moved along the image plane by a stepper motor. During its travel its light sensitive surface is exactly in the image plane and facing the lens. The step movements are interrupted for the scan of each image pixel row. Thus the sensor bar's movement is comparable with the movement of the slit of a focal plane shutter of an analog camera. But the focal plane shutter moves at fast speeds as slit whilst the sensor of a scanner camera might need more time for its travel.
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| Home-made scanner camera image by Antonio Giordano (Image rights) |
 
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| same field camera with other scanner backs images by Antonio Giordano (Image rights) |
{
 
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| 8x10inch camera images by Branislav Vojnovic (Image rights) |
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| Home-made scanner camera image by Antonio Giordano (Image rights) |
{
