Hitachi HV-F31F - Manual (Page 19)

5
Cleaning
A photographer’s blower or lens brush can be used for clearing dust from the lens and optical filters.
Wipe dust from the case with a soft dry cloth. If soiling is severe, moisten the cloth with a solution of neutral
detergent. Afterwards, wipe the cover with a dry cloth.
Do not use petroleum distillates, alcohol or spray type cleaners.
Transportation
Remove the lens (install lens mount cap) and other attachments. Pack the camera carefully in its original or
equivalent container. Use ample cushioning to protect the camera from physical shock.
CCD properties
The following phenomena are inherent to a charge coupled device imaging element and do not indicate
malfunction.
1) Smear and blooming
Vertical bands are visible when a strong light enters the scene. Adjust the camera aiming direction
carefully to avoid strong direct or reflected light.
2) Fixed pattern noise
High ambient temperature can cause fixed pattern noise to appear throughout the scene.