I know, the colors are over the top, and it's soft. I post this photograph for technical reasons. On a recent trip into Penn's Cave in Centre Hall, PA, I explored the extreme limit of my camera's low light settings. This photo was taken from a moving boat using the cave's existing floodlights. The Nikon D90 was set at the highest ISO "H 1," which is equivalent to 6400; lens was Nikkor 60mm f/2.8, currently my brightest lens. The high ISO noise correction is on "high." While it's not brochure quality, but it's actually interesting--unlike most other cave photographs I have tried! It provides an accurate record of the visit without the artificial flattening from a strobe, if the strobe could reach at all. I have the same angle with white light rather than colors, but it wouldn't be a tourist cave without tacky colored floods, now would it?

posted: 2010-07-12 14:15:51 • Comments (0)

EXIF DATA:
Camera Model: NIKON D90
Focal Length: 60 mm
Exposure: 1/40 sec
Aperture: f/2.8
ISO: 6400
Flash: Not Fired