Hi Mimi! The Brunton is more accurate if you tripod-mount it and use the shadow method. But then you need to add instrument height and light height. People are often too lazy to do that, however.
- Pete > On Jan 30, 2022, at 7:50 PM, Mimi Jasek <mjca...@gmail.com> wrote: > > I’m with you Pete. Jim never went to Suunto - always Brunton. But then he did > not do much wet cave surveying, nor deep vertical stuff. Although he will > never go caving again, we still have lots of carbide lamps and some carbide, > along with our LED lights. I still love that smell! Lol > > Mimi Jasek > > Sent from my iPhone > > On Jan 30, 2022, at 8:26 PM, P Lindsley <caverp...@gmail.com > <mailto:caverp...@gmail.com>> wrote: > >> Brunton’s also work well, but there is hardly anyone left that knows how to >> use one. >> >> Years ago 5 of us were surveying a mile in a wet suit stream passage in >> Colossal Cave, Ky. Roger Brucker and Alan Hill went to the “end” to survey >> back, Art & Peg Palmer and myself started surveying “in”. We made good time >> and bragged about it when we met the other team. Their story was that the >> Brunton was dropped in a muddy pool, too muddy to see the instrument. When >> they finally fished it out of the drink it was full of water. But they used >> their carbide lights to boil out the water, and when dry enough they started >> surveying. Can’t do that today with LED lights. >> >> My 3 Brunton’s still work, long ago my 3-4 Suuntos clouded up and were no >> longer useful. >> >> - Pete >> >>> On Jan 30, 2022, at 1:20 PM, John Lyles <j...@losalamos.com >>> <mailto:j...@losalamos.com>> wrote: >>> >>> George, thanks for sharing this. Ben Meadows and FS used to be competitors. >>> I'm glad at least one is still going. I just tossed my old hardcopy >>> catalogs from them the other day. Around 2006 we started noticing that the >>> face of Suuntos was getting cracked frequently. They had changed to some >>> different plastic fabrication. It's possible that the earlier ones had a >>> domed lens where the newer ones were flat. Many cavers started gluing a >>> thin sheet of transparent polycarbonate over the lens, still admitting >>> light of course. Another solution was to always keep it in the pouch and >>> add a thin piece or Micarta or FR4 circuit board material 0.03 or 0.06 >>> thick in the pouch on the face side. >>> >>> The Nat Park at Carlsbad was slow at adopting this approach and those of us >>> who broke our share of government Suuntos were intimately familiar with the >>> problem. We carried them in small Otter boxes but it was inevitable that >>> someone would be shooting a station in a crawl and accidentally crawl to >>> the next shot with it hanging from neck, to then find that unmistakeable >>> wet spot on their shirt with that oily fluid. It wasn't abnormal to have >>> one leaking out of 4 that we took underground on camp trips, so extras were >>> brought along. I think the CRO had a regular annual budget item repairing >>> them. >>> >>> On one trip we took a CRO staffer on the second trip up to OZ in >>> Lechuguilla Cave. Between three of us we had several Suuntos, despite my >>> suggestion that we bring extras. I think we managed to kill one, leaking >>> fluid, tried duct tape, hold it only face up, etc. We managed to survey >>> with a bubble and that finally changed the reluctance to install plastic >>> guards on the Park's inventory. >>> >>> Disto X2's also benefit from having a thin plastic sheet over the display, >>> as it can be cracked if pressed face against a rock, to ruin a $500 >>> instrument. I modified mine and the collection belonging to the Fort >>> Stanton Cave Study Project. >>> >>> John >>> On Jan 30, 2022, at 10:52 AM, George Veni <gv...@nckri.org >>> <mailto:gv...@nckri.org>> wrote: >>> While many cavers are now using DistoX2s for surveying, many of us still >>> have and use Suuntos. I was on trip yesterday and found the face of my >>> Suunto compass had cracked, creating a large bubble inside the instrument >>> that makes it hard to use accurately. Years ago, I’d send my Suuntos off to >>> the Ben Meadow Company for repair. I hadn’t heard of anyone doing that >>> recently, so I looked into it and am posting this note in case anyone finds >>> it helpful. >>> >>> >>> >>> >>> Ben Meadows is now part of Forestry Suppliers. And they do repair Suunto >>> compasses and clinometers (among other things) for about $100 less than >>> buying a new one. For more information, go to >>> https://www.forestry-suppliers.com/RepairList.php >>> <https://www.forestry-suppliers.com/RepairList.php>. >>> >>> >>> >>> >>> George >>> >>> >>> >>> >>> ******************** >>> >>> >>> George Veni, PhD >>> >>> >>> Executive Director, National Cave and Karst Research Institute (NCKRI) >>> >>> >>> and >>> >>> >>> President, International Union of Speleology (UIS) >>> >>> >>> >>> >>> NCKRI address (primary) >>> >>> >>> 400-1 Cascades Avenue >>> >>> >>> Carlsbad, New Mexico 88220 USA >>> >>> >>> Office: +575-887-5517 >>> >>> >>> Mobile: +210-863-5919 >>> >>> >>> Fax: +575-887-5523 >>> >>> >>> gv...@nckri.org <mailto:gv...@nckri.org> >>> >>> >>> www.nckri.org <http://www.nckri.org/> >>> >>> >>> >>> >>> UIS address >>> >>> >>> Titov trg 2 >>> >>> >>> Postojna, 6230 Slovenia >>> >>> >>> www.uis-speleo.org <http://www.uis-speleo.org/> >>> >>> >>> www.iyck2021.org <http://www.iyck2021.org/> >>> >>> >>> >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Southwestern Cavers of the National Speleological Society" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to swrcavers+unsubscr...@googlegroups.com >>> <mailto:swrcavers+unsubscr...@googlegroups.com>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/swrcavers/fb6b1c7a-3aee-46eb-8ee4-e6e02bda0664%40losalamos.com >>> >>> <https://groups.google.com/d/msgid/swrcavers/fb6b1c7a-3aee-46eb-8ee4-e6e02bda0664%40losalamos.com?utm_medium=email&utm_source=footer>. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Southwestern Cavers of the National Speleological Society" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to swrcavers+unsubscr...@googlegroups.com >> <mailto:swrcavers+unsubscr...@googlegroups.com>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/swrcavers/0A3F73C2-444D-4093-BBF9-BB96999349AA%40gmail.com >> >> <https://groups.google.com/d/msgid/swrcavers/0A3F73C2-444D-4093-BBF9-BB96999349AA%40gmail.com?utm_medium=email&utm_source=footer>.
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