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The ball in the pen as measured was 1.1mm +/- 0.05. Calculated macro magnification comes in at 3.5 instead of 4X? (such is the accuracy of the dia measurement).
F stop set to f16
Full EXIF Info | |
Date/Time | 06-May-2007 08:30:26 |
Make | Canon |
Model | Canon EOS 400D DIGITAL |
Flash Used | No |
Focal Length | |
Exposure Time | 1/125 sec |
Aperture | |
ISO Equivalent | 800 |
Exposure Bias | |
White Balance | |
Metering Mode | (-1) |
JPEG Quality | |
Exposure Program | |
Focus Distance |
All photographs are copyright of Barry S Moore, Sydney Australia