HIGH RESOLUTION IMAGE SCANNING
For a detailed analysis of your project requirements please contact us at info@imtcan.com.
The following charts provide resolution information to assist you in project planning.
PIXEL SIZES IN METRES - 6" PHOTOGRAPHY - APPROX. PHOTO AREA = 240x240mm
Pixel Size in Ground Units per Photo Scale and Scan Resolution
Scan Res./Pixels
1:40,000
1:20,000
1:15,000
1:10,000
1:5,000
1:4,000
10μm / 2540dpi
0.4m
0.2m
0.15m
0.1m
0.05m
0.04m
12.5μm / 2032dpi
0.5m
0.25m
0.1875m
0.125m
0.0625m
0.05m
15μm / 1709dpi
0.6m
0.3m
0.225m
0.15m
0.075m
0.06m
20μm / 1270dpi
0.8m
0.4m
0.3m
0.2m
0.1m
0.08m
30μm / 846dpi
1.2m
0.6m
0.45m
0.3m
0.15m
0.12m
40μm / 635dpi
1.6m
0.8m
0.6m
0.4m
0.2m
0.16m
For feature recognition, a minimum cluster of 4 pixels is required, 8 pixels preferred.
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| File Sizes in MB/Amount that Fit on a CD
Scan Res. B/W
SIS B/W
TIF Colour
SIS Colour
TIF 10μm
650
500
1950
1500
12.5μm
470
360
1410
1080
15μm
307
230
920
690
20μm
173
120
520
360
30μm
82
56
246
168
40μm
46
29
138
87
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DPI to Micron Translation
SPI Scan Res.
μm Scan Res.
Dot size in 40μm
300 dpi
84μm
84.666...
600 dpi
42μm
42.333...
1200 dpi
21μm
21.166...
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