Stock photo of an Ice Cave inside the Mendenhall Glacier. The colour inside an Ice Cave usually appears blue because the ice is so compacted. Although Ice Caves can be dangerous they make for some beautiful photos.
Technical Information:
I photographed this photo with the digital SLR camera model Canon EOS-1DS, aperture of f/16.0, exposure time of 3000000/10 sec. on ISO 50, as always I used a original Canon Lens, the focus lenght for this picture was 16mm.