I don't get it? I shot in ISO 100, and there is still noise?
Number 3 :
# Exposure Time (1 / Shutter Speed) = 1/30 second ===> 0.03333 second
# Lens F-Number / F-Stop = 5/1 ===> ƒ/5
# Exposure Program = aperture priority (3)
# ISO Speed Ratings = 640
# Unknown tag, Tagnum 0x8830 = data ===> 0
# EXIF Version = 0221
# Original Date/Time = 2010:09:06 14:42:59
# Digitization Date/Time = 2010:09:06 14:42:59
# Shutter Speed Value (APEX) = 4906891/1000000
Shutter Speed (Exposure Time) = 1/30 second
# Aperture Value (APEX) = 4643856/1000000
Aperture = ƒ/5
# Exposure Bias (EV) = 0/6 ===> 0
# Max Aperture Value (APEX) = 47/10 ===> 4.7
Max Aperture = ƒ/5.1
# Distance to Subject = 45/100 m
# Metering Mode = pattern / multi-segment (5)
# Light Source / White Balance = unknown (0)
# Flash = Flash did not fire
# Focal Length = 360/10 mm ===> 36 mm
# Last Modified Subsecond Time = 50
# Original Subsecond Time = 50
# Digitized Subsecond Time = 50
# Colour Space = 65535
# Image Width = 4288 pixels
# Image Height = 2848 pixels
# Image Sensing Method = one-chip color area sensor (2)
# Image Source = digital still camera (DSC)
# Scene Type = directly photographed image
# Colour Filter Array (CFA) Geometric Pattern = 0x02,0x00,0x02,0x00,0x01,0x02,0x00,0x01
# Custom Rendered = normal process (0)
# Exposure Mode = auto exposure (0)
# White Balance = auto (0)
# Digital Zoom Ratio = 1/1 ===> 1
# Focal Length in 35mm Film = 54
# Scene Capture Type = standard (0)
# Gain Control = low gain up (1)
# Contrast = normal (0)
# Saturation = normal (0)
# Sharpness = normal (0)
# Subject Distance Range = unknown (0)
# Unknown tag, Tagnum 0xa431 = data ===> 8148963
# Unknown tag, Tagnum 0xa432 = data ===> 180/10,550/10,35/10,56/10
# Unknown tag, Tagnum 0xa434 = data ===> 18.0-55.0 mm f/3.5-5.6
As you can see : iso 640
Patrick.
