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Roppelcaver wrote:The big downside is losing the tape as a frame of reference for a sketch. If you are trying to do really accurate sketches, the tape is invaluable for this. Without a tape, coupled with the propensity of a lasered shot to be long, the opportunity for distortions on your sketch can be enormous.
At least it is for me. Some, it seems, can do perfect work just by eyeball.
I've always thought that passages too tight to enter should not contribute to a cave's surveyed length, and have never included them on one.Cindy Heazlit wrote:Can perform survey of passages "too tight" to go down.
ian mckenzie wrote:I've always thought that passages too tight to enter should not contribute to a cave's surveyed length, and have never included them on one.Cindy Heazlit wrote:Can perform survey of passages "too tight" to go down.
Roppelcaver wrote:snip... Without a tape, coupled with the propensity of a lasered shot to be long, the opportunity for distortions on your sketch can be enormous.
Roppelcaver wrote:The tape is one of the most error prone parts of the survey (can't backsight a taped distance) and is the source of many blunders by good surveyors. I don't know how easy it is to screw up a laser shot, but that is a consideration in any event.
ian mckenzie wrote:I've always thought that passages too tight to enter should not contribute to a cave's surveyed length, and have never included them on one.Cindy Heazlit wrote:Can perform survey of passages "too tight" to go down.
ian mckenzie wrote:I thought the UIS rules on cave length/depth were dependent on a human being able to go up/into/along it.
NZcaver wrote:But I have to say my Leica Disto Lite 4 (and a number of similar Distos I've worked with) actually do use AAAs, and not AAs. The battery life, in my opinion, is excellent (2 full weeks of use with the same set of NiMHs, and the battery indicator still showing full).
NZcaver wrote:I've heard complaints of how "bad" lasers are, which are often made by dummies who use someones hand as a target plate. I've found that about a 1-foot square piece of white spongy packing foam works great - and it folds up nicely to carry around.
Cindy Heazlit wrote:I always have AA on me for my lights. It is just more convenient to have all my equipment use the same type of battery.
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