Archived posting to the Leica Users Group, 2004/09/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks Marc, I have thought of hiring a troup of porters, but it seems it will be just me and therefore a more limited array of gear. I don't think we sleep at 5500, only scale that height to capture the vistas. Not that the height of Gorak Shep or Gokyo are to be sneezed at. We have given ourselves an extra 4 days over the rate which was originally proposed, and if we only make it to one of the two main destinations, I'll still be happy and content. Cheers On 19/09/2004, at 7:51 AM, Marc James Small wrote: > At 01:44 PM 9/17/04 +1000, firkin wrote: >> Ok, I'm climbing to over 5500 meters, the air is thin and the UV must >> be >> high: now can I use (should I use) a UV filter? >> >> tips please on mountain photography: >> how wide an angle lens will I need? >> how much in the telephoto range would be useful? >> how can I keep the weight down? > > Alaistair > > There are two conflicting realities in this: > > First, you do not wish to carry a lot of weight with you and, of course > > Second, you want to have a really good wide-angle lens and a really > good > long-focus lens for topographic photography, and either a 35mm or 50mm > lens > for shooting around your camp and taking pictures of your party in > action. > I would recommend a Questar (1300mm), a Viso outfit of the 400, 280, > and > 200 lenses, and Leica RF lenses -- 3.4/135, 2/90 APO Asph, 1.4/50, and > below this your choices are your own. But that load would require a > party > of three Sherpas to tote, so I would probably restrict it to a 3.4/135, > either a 1.4/50 or a 1.4/35, and a wide lens to your choice. > > Third, 5500 meters is 18,000 feet in real terms. This is pretty much > the > cutting edge for high-altitude adventure. If you are going to use > oxygen, > make certain that you sleep with your gear in place and operating. If > not, > then go high for a week or tenday, and then go low for at least a week. > You ought to then be fully acclimatized. (18,000 feet is the absolute > limit for extended humna existence without oxygen and, even then, this > works best with folks adapted to it such as Peruvians and Tibetans.) > > Smoking helps. If you are a smoker, light up at altitude and the kick > of > the nicotine helps you adjust more rapidly to the effects of reduced > air > pressure. > > Marc > > msmall@infionline.net FAX: +540/343-7315 > Cha robh b?s fir gun ghr?s fir! > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > Alastair