Problème avec un Ixus (capteur, traitement, autre?)

Yopla

Mon Géniteur a un problème avec son compact, un Canon Ixus 950 IS.
Les dernières photos qu'il a pris sont toutes loufoques niveau couleurs,
comme s'il essayait de faire des trucages
j'en prend une comme exemple:

http://cjoint.com/?jnpVWgtIAx

j'ai empoigné son appareil, fait quelques photos, elles sont normales

je vous colle l'entier des exif après signature, si ça peut aider (note:
j'ai reduit la taille et la compression, rien d'autre)

D'où ça peut venir, d'après vous?

Merci pour vos avis éclairés

--
Haroun






File name: IMG_1478.JPG
File size: 682960 bytes (1600x1200, 2.8bpp, 8x)
EXIF Summary: 1/320s f/5.5 ISO80 23.2mm

Camera-Specific Properties:

Equipment Make: Canon
Camera Model: Canon DIGITAL IXUS 950 IS
Maximum Lens Aperture: f/5.5
Sensing Method: One-Chip Color Area
Lens Size: 5.80 - 23.20 mm
Firmware Version: Firmware Version 1.00

Image-Specific Properties:

Image Orientation: Top, Left-Hand
Horizontal Resolution: 180 dpi
Vertical Resolution: 180 dpi
Image Created: 2009:07:30 13:32:20
Exposure Time: 1/320 sec
F-Number: f/5.5
Lens Aperture: f/5.5
Exposure Bias: 0 EV
Flash: No Flash, Compulsory
Focal Length: 23.20 mm
Color Space Information: sRGB
Image Width: 1600
Image Height: 1200
Rendering: Normal
Exposure Mode: Auto
Scene Capture Type: Standard
Focus Type: Auto
Metering Mode: Evaluative
ISO Speed Rating: Auto
Sharpness: Normal
Saturation: Normal
Contrast: Normal
Shooting Mode: Unknown
Image Size: Unknown
Focus Mode: Single
Drive Mode: Single
Flash Mode: Off
Compression Setting: Fine
Macro Mode: Normal
Subject Distance: 65.530 m
White Balance: Auto
Exposure Compensation: 3
Sensor ISO Speed: 160
Image Number: 100-1478

Other Properties:

Resolution Unit: i
Chrominance Comp Positioning: Centered
Exif IFD Pointer: 196
Compression Scheme: JPEG Compression (Thumbnail)
Horizontal Resolution: 180 dpi
Vertical Resolution: 180 dpi
Resolution Unit: i
Offset to JPEG SOI: 5108
Bytes of JPEG Data: 4436
ISO Speed Rating: 80
Exif Version: 2.20
Image Generated: 2009:07:30 13:32:20
Image Digitized: 2009:07:30 13:32:20
Meaning of Each Comp: Unknown
Image Compression Mode: 3
Shutter Speed: 1/318 sec
Metering Mode: Pattern
Focal Plane Horiz Resolution: 7111 dpi
Focal Plane Vert Resolution: 7100 dpi
Focal Plane Res Unit: i
File Source: Digital Still Camera
White Balance: Manual
Digital Zoom Ratio: 1
Base Zoom Resolution: 3264
Zoomed Resolution: 3264
Exposure Mode: Easy Shooting
Digital Zoom: None
Self-Timer Length: 0 sec
Canon Tag1 Length: 92
Flash Bias: 0.00 EV
Sequence Number: 0
Canon Tag4 Length: 68
Image Type: IMG:DIGITAL IXUS 950 IS JPEG
Owner Name: