black and white dip or no dip ?

Artist: Picasa;
Exposure Date: 2009:07:06 02:54:36;
ImageDescription: Processed by: Helicon Filter;;
Make: SONY;
Model: DSC-H50;
ExposureTime: 10/2500 s;
FNumber: f/6;
ISOSpeedRatings: 100;
ExposureProgram: Manual;
ExposureBiasValue: 0/10;
MeteringMode: Pattern;
Flash: Flash did not fire, compulsory flash mode;
FocalLength: 17 mm;
Software: PhotoScape;
ExifGpsLatitude: 48 49 48 48;
ExifGpsLatitudeRef: R98;