File:WatkinsMeter.jpg
Original file (976 × 448 pixels, file size: 231 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionWatkinsMeter.jpg | Watkins Exposure Meter with one-second pendulum timing chain attached to removable cover at one end, rotatable rings around cylinder to calculate aperture, time, etc, and removable cover at other end to retain coil of light-sensitive paper, with slit to pull out in stages. Engraved 'Watkins Exposure Meter - Patent - Sole Makers R. Field and Co. Birmingham'. Note: this is not the later Watkins 'Bee' Meter, which was similar in appearance to a pocket watch. |
Date | |
Source | Own work |
Author | Tony in Devon |
Licensing
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Annotations InfoField | This image is annotated: View the annotations at Commons |
Timing chain
Engraved text as shown in description. The collar (with slit to pull through sensitive paper) is slightly deeper than the neck of cylinder, thus keeping the slit clear of cylinder collar.
Raised stops marked (from right): AE, D, S - and a 4th far left stop which is missing from this example.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:17, 26 August 2010 | 976 × 448 (231 KB) | Tony in Devon (talk | contribs) | {{Information |Description={{en|1=Watkins Exposure Meter with one-second pendulum timing chain attached to removable cover and one end, rotatable rings around cylinder to calculate apature, etc, and removable cover at other end to retain coil of light-sen |
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Orientation | Normal |
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Horizontal resolution | 150 dpi |
Vertical resolution | 150 dpi |
Software used | Adobe Photoshop 7.0 |
File change date and time | 18:56, 26 August 2010 |
Color space | Uncalibrated |