File:Lighthouse DGJ 8904 - Pointe-au-Père Lighthouse (4983332479).jpg
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DescriptionLighthouse DGJ 8904 - Pointe-au-Père Lighthouse (4983332479).jpg |
English: PLEASE, NO invitations or self promotions, THEY WILL BE DELETED. My photos are FREE to use, just give me credit and it would be nice if you let me know, thanks.
Pointe-au-Père Lighthouse played a primordial role in the history of navigation on the St. Lawrence River. The existing lighthouse, built in 1909, is the second highest in Canada (128 steps of the Lighthouse and has a height of 33 meters (108’). The tower of this 3rd Lighthouse is an octagonal shape, built of re-enforced concrete and strengthened by eight pillars of the same materiel, a rare style for Canadian lighthouses. The optic lens installed in the new lighthouse was a marvel of precision. At the beginning of the century, the high volume of traffic made it necessary to construct a new better equipped Lighthouse. In 1908, this site was chosen to install a stronger light. The new lens had an internal diameter of one meter and a focal distance of half a meter. In the Spring of 1909, the new 33 meters (108’) high Lighthouse was inaugurated for the Navigation Season. It is the second highest lighthouse in Canada. The light used the principle of concentrated beams and projected reflection by means of prisms and lenses. This device of glass and cooper weighed one and half ton, and rested in a bath of mercury to avoid friction while in motion. The movement of this device was similar to a Grand Father clock and weighed 272kg (600 lbs) which had to be rewound by hand. The mechanism was such that it turned once every 15 seconds, therefore there were 4 flashes of light every 7½ seconds (specific code for Pointe-au-Père). The lighthouse code at Cap-Chat was two flashes, Petit-Métis three and Pointe-au-Père four. Their codes helped mariners to locate their positions. |
Date | |
Source | DGJ_8904 - Pointe-au-Père Lighthouse |
Author | Dennis Jarvis from Halifax, Canada |
Camera location | 48° 31′ 03.25″ N, 68° 28′ 15.61″ W | View this and other nearby images on: OpenStreetMap | 48.517570; -68.471002 |
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This image was originally posted to Flickr by archer10 (Dennis) (62M Views) at https://flickr.com/photos/22490717@N02/4983332479. It was reviewed on 24 December 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
24 December 2015
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:58, 24 December 2015 | 2,848 × 4,288 (4.93 MB) | JvA43 (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 D300 |
Author | DENNIS G. JARVIS |
Copyright holder |
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Exposure time | 1/500 sec (0.002) |
F-number | f/11 |
ISO speed rating | 200 |
Date and time of data generation | 11:33, 24 August 2010 |
Lens focal length | 20 mm |
User comments | dgjarvis@eastlink.ca |
Width | 2,848 px |
Height | 4,288 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 11:40, 17 October 2015 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 11:33, 24 August 2010 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 8.965784 |
APEX aperture | 6.918863 |
APEX exposure bias | 0 |
Maximum land aperture | 3.7 APEX (f/3.61) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 77 |
DateTimeOriginal subseconds | 77 |
DateTimeDigitized subseconds | 77 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 30 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |
Date metadata was last modified | 08:40, 17 October 2015 |
Unique ID of original document | xmp.did:D175B6A415206811994CBB10957DD11A |