Dust On The Lcd Shutter / Color Filters - Sinarcam Multipurpose Digital Camera User Manual

10. Dust on the LCD shutter / color filters

The digital camera back and the Sinarcam body are very delicate devices that need special handling
and care. Dust and dirt can lessen the quality of the digital image and may cause expensive
retouching work. Do whatever you can to avoid dust around the camera and keep always in mind that
the unit does act as film and should be treated as your most precious negative.
Dust on the CCD are visible as tiny black spots. By opening the aperture, the spot gets larger and
becomes faintly visible. By closing the aperture, the spot gets smaller and gets sharper outline.
Sinaron digital 135 mm, size of area approx. 3 x 3 mm ( 1/100 of the entire CCD)
f-stop 45 f-stop 32 f-stop 22 f-stop 16
Dust on the color filters are visible as tiny color spots. Yellow spots are caused by dust on the blue
filter, magenta spots by dust on the green filter and cyan spots by dust on the red filter.
Sinaron digital 135 mm, f-stop 45, same region as above.
Dust on the red filter: the spot is only visible in the red color channel, whereas dust on the CCD is
visible in all color channels. Again: High f-stop settings make the spots in the digital image more
visible than low f-stop settings.
Sinarcam1UsersGuideE.rtf Date: 14.03.00 14:22