Hasselblad 70480522, 70380554, 70480542 Care and maintenance of sensor unit, Handling and storage

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Never attempt to remove the glass filter from the front of the CCD – you will probably ruin the CCD if you do so. If dust manages to get between the IR filter and CCD, it can only be removed at the Hasselblad factory. Contact your Hasselblad dealer for assistance.

  Care and maintenance of sensor unit

Handling and storage

•Always replace the protective CCD/filter cover when the sensor unit is not mounted on the camera.

•Do not touch the exposed CCD/filter with your fingers.

•Keep all foreign objects out of the camera opening.

•Store the sensor unit away from moisture and excessive heat.

•Protect the sensor unit from impact–do not drop it.

Cleaning the CCD Infrared Filter

If you see dark or colored spots or lines in your images, then you may need to clean the outer surface of the sensor unit’s infrared (IR) filter. In most cases, the careful use of compressed air will be adequate though if you use canned compressed air, read the ­instructions very carefully before use to avoid spraying impurities or even ice on the filter! Sometimes, however, small particles will get stuck to the surface of the IR filter, requiring for a more thorough cleaning, involving either fluid or wipes. For a good safe cleaning, follow descriptions below.

Basic air-cleaning procedure / removing the sensor unit

1.Remove a FireWire if connected.

2.Remove the viewfinder.

3.While pushing the safety catch backwards on the sensor unit (3 illus. A) push the lever of the sensor unit release button to the right (3 illus. B) and while maintaining that position press the centre of the button firmly inwards towards the camera body (3 illus. C) to finally release the magazine.

4.Clean the outside surface of IR filter by spraying it with clean compressed air (see warning above first). If this is not enough, then use one of the procedures outlined below.

5.Reattach the sensor unit to the camera immediately after cleaning to check results.

6.If you still see spots on your shots after you have cleaned the outside of the infrared filter, then you may have dust either on the inside of the IR filter or on the CCD itself.

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