Chunks of glacial ice in Alaska

In the early 90's, I was in Anchorage, Alaska and rented a small canoe to paddle around the ice that had calved from the Portage Glacier. It was quite surreal -- it felt like a futuristic movie set. I couldn't use a tripod, obviously, so to achieve complete depth of field it was necessary to use a wide angle lens plus the smallest lens aperture possible given the muted, diffused light and the low ISO I was using. I took the shot with a Mamiya 7, a 6x7cm medium format camera (meaning the slides were 6x7cm or 2 1/4 x 2 3/4 inches), and a 43mm lens which is equivalent to about a 21mm lens in the full frame digital format. My settings were unrecorded, but I used Fujichrome Velvia 50 for all my landscape work (50 ISO), and I probably took this with a shutter speed of 1/60 and an aperture of f/8. The exposure was determined by a handheld light meter, the Sekonic L-358.