Download:
File Type:
jpeg (image/jpeg)
Photo Credit:
Jeremy D'Entremont
Collection / Donor:
Type of Object:
Lens Order:
3.5
Lens Characteristic:
F/FL/W
Usage:
Active In Use
Lens Style:
Composite a Lens Made From Two Styles of Lens
Reflector:
No
Contact / Remarks
Lens has a condensing panel in front of it. A mariner in the channel into Salem Harbor sees the light through the panel. The light is brightest when seen through the center of the panel, and it dims if the mariner veers away from the center of the channel.
Entered by:
Entered Date:
Jan 30, 2018