File:Land Gastropod leaving mucus-conserving trail IMG 1674s.JPG
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Captions
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Summary
[edit]DescriptionLand Gastropod leaving mucus-conserving trail IMG 1674s.JPG |
English: Cornu aspersum (or Helix aspersa as it used to be) leaves a mucus-conserving trail when moving over an absorbent surface such as dry brick. Here the foot is raised in two places to avoid contact that would leave unnecessarily expended mucus. |
Date | |
Source | Own work |
Author | JonRichfield |
Photograph taken in a garden in the Western Cape province of South Africa, which is outside the natural range of Helix aspersa
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:03, 28 April 2014 | 2,794 × 662 (1.13 MB) | JonRichfield (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A650 IS |
Exposure time | 1/40 sec (0.025) |
F-number | f/4 |
ISO speed rating | 80 |
Date and time of data generation | 07:31, 25 January 2013 |
Lens focal length | 7.4 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 17:37, 28 April 2014 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 07:31, 25 January 2013 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.3125 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Spot |
Flash | Flash did not fire, compulsory flash suppression |
Keywords |
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