File:Duluth South Pier Inner Range Light (7564438926).jpg
![File:Duluth South Pier Inner Range Light (7564438926).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Duluth_South_Pier_Inner_Range_Light_%287564438926%29.jpg/397px-Duluth_South_Pier_Inner_Range_Light_%287564438926%29.jpg?20160328043700)
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Summary
[edit]DescriptionDuluth South Pier Inner Range Light (7564438926).jpg |
This is the tallest operating lighthouse in Duluth. It was completed in 1901. This lighthouse originally displayed a 4th order fresnel lens and which was rotated by a clockworks mechanism. That lens has been removed and is now on display in the Canal Park Marine Museum, which is adjacent to the Duluth ship canal. The lens currently being used is a plastic fresnel lens which is also rotated to produce a flashing white light. The purpose of this light was to help ships align themselves to the canal at night. If the white flashing range light can be seen directly above the steady green light of the lighthouse at the end of the same pier, then you know you are approaching the canal straight on. If the two lights are not seen one above the other, then you are not lined up with the canal. This lighthouse was sold in 2008 and is now in private hands, but it is still active as an aid-to-navigation. |
Date | |
Source | Duluth South Pier Inner Range Light |
Author | Pete Markham from Loretto, USA |
Licensing
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This image was originally posted to Flickr by pmarkham at https://flickr.com/photos/9197427@N06/7564438926. It was reviewed on 28 March 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
28 March 2016
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:37, 28 March 2016 | ![]() | 3,264 × 4,928 (3.35 MB) | Geo Swan (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D7000 |
Author | Peter J Markham |
Copyright holder | Copyright 2012 by Peter J Markham |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/16 |
ISO speed rating | 250 |
Date and time of data generation | 18:47, 11 July 2012 |
Lens focal length | 18 mm |
City shown | Duluth |
Pixel composition | Color Filter Array |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Aperture 3.3.1 |
File change date and time | 18:47, 11 July 2012 |
Exposure Program | Aperture priority |
Date and time of digitizing | 18:47, 11 July 2012 |
APEX exposure bias | 0 |
Maximum land aperture | 3.6 APEX (f/3.48) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 10 |
DateTimeOriginal subseconds | 10 |
DateTimeDigitized subseconds | 10 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 27 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
IIM version | 2 |
Country shown | USA |
Province or state shown | MN |