http://precisionrifleblog.com/2013/10/2 ... ders-work/
Really nice article and the author explains and illustrates it well.
The thing that amazes me is that we have cheap 'clocks' able to measure the amount of time it takes light to travel a few yards at most. Light travels at 299,792,458 meters per second, so that requires clock speeds accurate in billionths-of-a-second....
Rangefinders - how they work
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- AJMD429
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Rangefinders - how they work
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Re: Rangefinders - how they work
Deep Doc, Really deep.
JerryB II Corinthians 3:17, Now the Lord is that Spirit: and where the Spirit of the Lord is, there is liberty.
JOSHUA 24:15
JOSHUA 24:15
Re: Rangefinders - how they work
Funny, your post reminded me of this old quote...
"If the enemy is in range -- so are YOU!!!"
Old No7
"If the enemy is in range -- so are YOU!!!"
Old No7
"Freedom and the Second Amendment... One cannot exist without the other." © 2000 DTH
Re: Rangefinders - how they work
Actually, that was a really good article with very clear illustrations that showed things I'd only read about before, but clearly "saw" and better understood thanks to those images.
So now I'm thinking the rangefinder works just like my sonar "fish finder" but without water and the scrolling chart, but some of the same issues/challenges remain -- beam spread, different bottoms (distances) shown as "one" target, interference (fish, bait, thermocline) or target size, etc.
Pretty cool article, thanks for sharing it!
Old No7
So now I'm thinking the rangefinder works just like my sonar "fish finder" but without water and the scrolling chart, but some of the same issues/challenges remain -- beam spread, different bottoms (distances) shown as "one" target, interference (fish, bait, thermocline) or target size, etc.
Pretty cool article, thanks for sharing it!
Old No7
"Freedom and the Second Amendment... One cannot exist without the other." © 2000 DTH
- Paladin
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Re: Rangefinders - how they work
Good post, Thanks. Ended up with a Sig 2000 a few months ago, good price and after I got was able to range targets to 2300 meters so works GREAT.
It is not the critic who counts
Re: Rangefinders - how they work
I had a mid-priced range finder. A 275ish dollar Bushnell. Worked really good until you got in the woods. The 4 or 5X optics were really dark, and it would give false readings on every dang tree between me and what I was rangeing, even in the close 50 to 100 yard range.
The Rotten Fruit Always Hits The Ground First
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Proud Life Member Of:
NRA
Second Amendment Foundation
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DAV
- Griff
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Re: Rangefinders - how they work
Feeling reflective Doc?
Griff,
SASS/CMSA #93
NRA Patron
GUSA #93
There is a fine line between hobby & obsession!
AND... I'm over it!!
No I ain't ready, but let's do it anyway!
SASS/CMSA #93
NRA Patron
GUSA #93
There is a fine line between hobby & obsession!
AND... I'm over it!!
No I ain't ready, but let's do it anyway!