Archived posting to the Leica Users Group, 2006/08/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Your fascinating post begs the question, of course, of why Leica never got around to providing even the most rudimentary weatherproof seals in its high-end cameras. The Ms were, after all, a standard part of many PJs' kits up until the 80s, if not the 90s, and that means it was a given they would be subjected to the elements from time to time. On 8/26/06 3:21 PM, "Lawrence Zeitlin" <lrzeitlin@optonline.net> wrote: > Without belaboring the issue of Leicas at sea for too long, we must > remember that Leica cameras are not now and never were intended to be > water tolerant. Equipments for use in a marine environment are rated > for the degree of water resistance by a number of agencies. The scale > ranges from 1 to 10 with the lower numbers meaning less water > resistance. An object (marine radio, camera, binocular, etc.) rated > JIS-4/IPX-4 is considered splash resistant but not suitable for > immersion. Objects with a lower raitng can withstand light rain > showers or heavy mist but no direct application of water. Most marine > handheld radios or "waterproof" cameras such as the Pentax Optio 10 > are rated JIS-7/IPX-7. This means that they will withstand a 30 > minute dunking under one meter of water and still operate. Real > waterproofing starts at JIS/IPX ratings of 8. A device so rated will > function after it has been submerged under 8 feet of water for half > an hour and at lesser depths for an indefinite period. True > underwater equipment like the Nikonos series of cameras will function > normally when submerged at a depth of 160 feet (50 meters). But even > they are not suitable for deep sea diving. > > Trivia: In bygone years, Nikonos cameras were permitted in surgical > operating rooms because they could be sterilized by dunking in a > bucket of bleach. > > Small boats are not the best environment for precision mechanical and > electrical equipment unless suitably sealed for marine use. By a > small boat, I mean anything from a kayak or canoe to a 40 foot > motorsailer. In ordinary use. on anything but extremely sheltered > waters, boats this size get doused with green water from waves and > in windy conditions are covered with spray. Kayaks, canoes, and small > sailboats capsize and are righted by their crews as a part of normal > operation. Bigger boats offer drier conditions and some degree of > shelter from the elements but even cruise liners occasionally get > water on deck. > > I'm not saying that Leicas will fail immediately if they get wet, but > they have little water resistance to speak of. I'm gazing fondly at > my M3 as I write this and I see that water can enter through the > shutter release, the winding lever, the rewind lever, the frame > lever, the lens release button, the speed dial, the back inspection > door, and the base plate. There are no seals on any of these > openings. The innards of the camera are loaded with small steel > parts, springs and bearings that will deteriorate if water enters and > the camera is not immediately dried. Spray, particularly salt spray > should be wiped off immediately. Even high humidity wrecks its havoc, > as anyone who has used a camera in the Asian monsoon season knows. > > If you use your Leica regularly in a marine environment or at the > beach and it functions well forever after, you are lucky. But I still > wouldn't take mine on a canoe trip unless it was packed in a > waterproof bag and I used it only on dry land. There are other > cameras which will do the job on the water. A used Nikonos with an > excellent Nikkor 35 mm F2.8 lens costs only about as much as a Leica > CLA. Why take the risk? > > Larry Z > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information