Re: Got my Vectronix Terrapin & compared it t my Swaro
<span style="font-weight: bold">Updated.</span>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CoryT</div><div class="ubbcode-body">There is a certain amount of offset in the beam to the crosshair at close range, rather like the bore to crosshair in the scope. In this case, the beam is offset left, convergence is normally set to max standard range. Try setting up so the car is at the far right edge of the opening, which should center the beam on the hole.</div></div>
I see!! So it may be that I'm bouncing this thin beam off a twig instead. Thanks for pointing this out - I'll experiment with it and report. <span style="font-style: italic">Update: turned out the beam did bounce back from twigs - twigs I apparently considered too small to interfere.</span>
I've been at a different location yesterday, and tried ranging street name signs (fairly small but reflective). Got me the range every time, no hesitation, right on the "cross-hair" mark, on distances 50m and up (didn't have anything closer
). Not sure if it means anything wrt. beam offset...? <span style="font-style: italic">Update: I couldn't detect any noticeable beam offset. Maybe when I get a hold on an NVG...</span>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: CoryT</div><div class="ubbcode-body">The Terrapin beam is visible in NVG's, so if you have some available you can spot the beam location compared to your aiming mark.</div></div>
Alas, not at hand. I'll see if I can scare one up quickly... This would be ideal as a debugging tool.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Augustus</div><div class="ubbcode-body">Do the math and figure the ht./width of the beam at the distances you are ranging. At 25 yds you should easily slip the beam through a 4 by 4 hole.</div></div>
This is exactly my point. I'm trying to "slip the beam" through a 6x6in (if not more) hole at 27m, which doesn't look that hard - this is why I'm concerned with the apparent failure to do so. <span style="font-style: italic">Update: the hole turned out to be not as clear as I thought during that first experiment. So I didn't "slip the beam through" cleanly - it bounced off some twigs.</span>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Augustus</div><div class="ubbcode-body">The small divergence of the TERRIPIN will make the 3d function more finicky up close than one with much larger divergence. The same thing that causes problems up close allows the TERRIPIN to shine at distance.</div></div>
What you call "small divergence" should mean that when I aim at the car through a large-enough hole (say roughly 6in x 6in at 27m), I should get just the car and only the car, every time. This whole thing started with me trying to range that car and that house through the twigs, and when failing (getting only the twigs) - trying to figure how to make Terrapin go there. <span style="text-decoration: line-through">I thought 3d was the answer, apparently most of the time it isn't - or my technique need improvement.</span> <span style="font-style: italic">Update: the key seems to be finding a window that is <span style="text-decoration: underline">really</span> clear of <span style="text-decoration: underline">any</span> obstruction, window of the size at least slightly larger than the aiming circle of the reticle.</span>
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<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Augustus</div><div class="ubbcode-body">The beam on the Bushy is four times as tall as the TERRIPIN. Try ranging a deer on flat ground at 1000 yds with the Bushnell. </div></div>
Yes I know that, thank you. It was one of the factors in the decision to buy Terrapin.
Next time I'm on a flat ground I'll let you know. Especially if there are any deer around.
</span> <span style="font-style: italic">This isn't very useful.</span>
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Augustus</div><div class="ubbcode-body">Get out and play with it..... There is much more to operating a rangefinder than being able to scroll through the functions.</div></div>
<span style="text-decoration: line-through">What a wonderfully useful piece of information. I wonder why it isn't clear to you that this is exactly what I'm doing? And when meeting something I didn't expect to, asking others with more experience to chime in?</span> <span style="font-style: italic">This also isn't very useful.</span>