Green 10K Long Distance Pointing

• Jul 17, 2016

• #1

ArcticDude

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Re-visiting 10K location with my 150mW 520nm PLP520 B1 Green Laser & Sanwu X3 Beam Expander.

Target distance 10 700 meters:
















Bridge's H-shape pylon width is 3 meters, so I estimated that green dot is at 10 700 meters is approx 1-1,5meters (One third of pylon width)

:beer:

 

• Jul 17, 2016

• #2

D

dden4012

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Wow. How far were you from your tripod for the beam pictures?

 

• Jul 17, 2016

• #3

ArcticDude

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dden4012 said:

Wow. How far were you from your tripod for the beam pictures?

Click to expand...

Just right next to (few meters).

In first picture you can see faint green line on mid right :yh:

 

• Jul 17, 2016

• #4

ArcticDude

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Found video from last winter, this is how 520nm PLP520 B1 looks like from 4.5km distance (without Beam Expander):

 

• Jul 17, 2016

• #5

S

steve001

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Enjoyed the photos. More please at greater and greater distances.

 

• Jul 18, 2016

• #6

ArcticDude

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steve001 said:

Enjoyed the photos. More please at greater and greater distances.

Click to expand...

Thanks! :thanks:

Trying to find locations for even longer distance pointing,

-Although it is quite difficult when you live in country where over 90% area of whole land is forest!

 

Last edited: Jul 18, 2016

• Jul 18, 2016

• #7

CurtisOliver

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That is no problem if you replant the trees like this.

If your authorities want to know why you want the entire forest replanted like that, just say you have very bad OCD.
Just aim in between the trees.
They can't complain, at least your not chopping a path through the forest.

 

• Jul 18, 2016

• #8

Cel

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Nice pics! :beer:

 

• Jul 19, 2016

• #9

ArcticDude

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CurtisOliver said:

That is no problem if you replant the trees like this.

If your authorities want to know why you want the entire forest replanted like that, just say you have very bad OCD.
Just aim in between the trees.
They can't complain, at least your not chopping a path through the forest.

Click to expand...

:crackup:
Aiming would be too easy, if entire forest would be replanteted like that

 

Last edited: Jul 19, 2016

• Jul 19, 2016

• #10

CurtisOliver

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If only You could do a laser rainbow. One laser per gap. That would be a pretty awesome shot. :crackup:

 

• Jul 19, 2016

• #11

Antharak

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Great pics, nice work. +rep

 

• Jul 19, 2016

• #12

mortuus

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wow nice, but if u didnt use the beam expander how far would it go ? i asume not much ?

 

Last edited: Jul 19, 2016

• Jul 20, 2016

• #13

ArcticDude

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mortuus said:

wow nice, but if u didnt use the beam expander how far would it go ? i asume not much ?

Click to expand...

Hard to say, Need to test it out when I next visit that location

 

• Jul 20, 2016

• #14

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plag

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Wow!! I want to do it with my Hercules 700!!

 

• Jul 26, 2016

• #15

Vxkid

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Nice work. I live in the Redwood forest and a fixed laser looks awesome shooting up these big giants. Problem is getting a crystal on top.

 

• Jul 26, 2016

• #16

Alaskan

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Very nice, thank you for sharing. I've long wanted to know how that diode performs at distance with a beam expander on it. I did a divergence calculation using the pseudonomen link in my signature and, if I did everything correctly, the divergence comes out to be somewhere from .09 to .14 mRad using the 3X expander, based on having a 1 and 1.5 meter spot at that distance.

pseudonomen137's JScript mRad Calculator