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Photographer's Note

Trevose Head Lighthouse
Position 50° 32'.92 N 05° 02'.07 W
A lighthouse was first proposed for this area of the North Cornish coast as early as 1809 there being no light at that time to guide ships trading in the Bristol Channel other than the Longships to the south and the old Lundy light to the north.

The position was further considered by Trinity House in 1813 and again in 1832, but it was not until 1st December 1847 that an oil light comprising wicks backed with reflectors, was first lit at Trevose Head.

The light is situated on the north west extremity of the head, with gigantic cliffs of grey granite rising sheer from the sea to a height of 150 feet or more. The area, like so much of the Devon and Cornish coastline is constantly threatened by sea mists that make even the most powerful lights seem like candles.

Prior to 1882 there were 2 fixed lights at Trevose Head. The High light in the tower we see today and to the front of this a Low light.

Trevose Lighthouse was automated in 1995 and the keepers were withdrawn on 20 December. The existing optic was retained but the rotation speed was slowed to alter the character to one flash every 7.5 rather than every 5 seconds. The red screens were removed to give a white light. A Tideland ML300 lantern mounted on the lantern gallery hand rail gives an emergency 10 sea mile light. The light is controlled by a photocell mounted on the lantern murette; telemetry equipment was also installed for remote monitoring and control from the Trinity House Operations Control Centre at Harwich in Essex.

This is a first try at attempting to capture the light as a beam rather than a blob of white light. I had a rough exposure of about 2 minutes but I held a piece of black card in front of the lens when the beam was going around the far side of the building. In effect, the exposure was around 30 seconds. The beam is natural: no PS effect here!

regards
Lindsay

jboj, fariischee marcou esta nota como útil

Photo Information
  • Copyright: Lindsay Philp (harlyn) Silver Note Writer [C: 6 W: 0 N: 48] (380)
  • Genre: Lugares
  • Medium: Cor
  • Date Taken: 2008-12-24
  • Categories: Natureza
  • Camera: Canon 5D
  • Exposição: f/4
  • Details: Tripod: Yes
  • More Photo Info: view
  • Versão da Foto: Versão Original
  • Date Submitted: 2008-12-25 2:49
  • Favoritos: 1 [ver]
Viewed: 2689
Points: 4
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Additional Photos by Lindsay Philp (harlyn) Silver Note Writer [C: 6 W: 0 N: 48] (380)
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