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Laser Genetics Genisys ND3 (Large Pics)

iskor12

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This is a review for the Laser Genetics Genisys ND3 By Iskor12
ND3 Green Laser Designator for hunting and EMT | Laser Genetics
Price: $329.95 usd

Stats:
1.) CLASS 2M LASER PRODUCT <20mW 532nm
2.) PRECISION MACHINED FROM HIGH TECH ALUMINUM
3.) BLACK MATTE ANODIZED FINISH
4.) FULLY O-RING SEALED FOR DUST AND WATER
5.) FULLY MULTI COATED OPTICAL LENS SYSTEM
6.) NITROGEN CHARGED FOR ANTI-FOG
7.) 1” TUBE ADAPTS TO MANY MOUNTING SYSTEMS
8.) DIMENSIONS: 6.25”L X 1.25” DIA. X 1.0” DIA. TUBE
9.) WEIGHT: 5.34 OZ.
10.) POWER SUPPLY: 1- CR123A BATTERY (PROVIDED)
11.) BATTERY LIFE: OVER 7 HOURS OF CONTINUOUS USE
12.) ROTARY OPTICAL BEAM COLLIMATOR- ALLOWS QUICK ADJUSTMENT OF BEAM
13.) DIAMETER AND INTENSITY
14.) OUTPUT POWER: 18mW
15.) RANGE: 3.0 MILES (EXTREME COLD WEATHER USE)
16.) 1 YEAR WARRANTY


First, Lets start with some pictures.







As you can clearly see, this thing is beautiful. Everything on it looks great.....

Here is a peek on the inside. (I did not tear this all of the way apart, because it is not mine)






As you can see from the pics....It looks very dirty, however, that is just grease. It is on there so that there is a smooth action for when you adjust the focus on it. The optics look phenominal. :) The main lens in the front says...6x on it? I'm not sure why. :)

Does anyone notice how this thing isn't fully O-ringed like they say it is? This this is water resistant at best.


So...how well does it work.

Well...it mode hops when you first turn it on....but after 1 to 2 seconds, it's stable. The mode hopping isn't very noticeable, due to the great optics, but it's there...and IMO should never happen with a $300+ laser.

EDIT:
As ElectroFreak pointed out to me...this easily could be, and most likely is a mild beam pointing instability caused by thermal lensing in the crystals. Either way, it still isn't something that I would expect to see in a $300+ laser.


I can say that it does do, as it is advertised. Due to the beam expander, it has a very long range. It does give you a sense of night vision while using it with a scope or binoculars.

Here is a picture of the beam at only 3 Feet away....focus for a large circle.


One thing that does bug me on the beam, is that it's not a perfect circle like they show on their site. :(

One other thing that bugs me...it is said to be able to handle extreme cold temps...but yet their site says to do this to it before exposing it to temps below 32F.


Hear are some beam shots.




1 to 10 rating: 10 being the best

Price/value: 4 (It's not worth $300+ to me. $150 to $200 is a decent range)
Quality: 7 (Would be higher if it didn't mode hop)
Output: 9 (Output is as good as advertised)
Overall Impression: 7

It does what it is designed and advertised to do. I recomend it, if you can get it for a good price.
 
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^I wouldn't classify what's happening in your video as mode hopping. It never actually leaves TEM00. That's just mild beam pointing instability caused by thermal lensing in the crystals. It's true that the laser could be better in terms of stability, but what you're seeing there is really not uncommon at all.
 

iskor12

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^I wouldn't classify what's happening in your video as mode hopping. It never actually leaves TEM00. That's just mild beam pointing instability caused by thermal lensing in the crystals. It's true that the laser could be better in terms of stability, but what you're seeing there is really not uncommon at all.
Yes...it's true that it doesn't appear to leave TEM00...but I still..think that it is mode hopping. I believe that the optics make it look better than what it actually is. There is a beam expander before it hits the huge Focusing lens.

I have seen what you are talking about many times with cheap chinese lasers...and it is associated with the crystal heating up. I admit that you could easily be right...but it just doesn't seem that way to me when I look at it.
 
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You have better perspective than I since you have the laser there, that's for sure. You're probably right.
 

iskor12

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I don't doubt the fact that you could be right...so I added your comment into my review.

The more I look at the video, the more I am starting to lean towards it just being a beam instability...just like you said. :)
 
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Many lasers have stability problems when they are turned on. Most only have their pointing stability ratings after an hour or more of run time to allow everything to thermally equalize.
 
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Many lasers have stability problems when they are turned on. Most only have their pointing stability ratings after an hour or more of run time to allow everything to thermally equalize.
interesting... won't most portable lasers just get hot and therefore less stable after an hour?

will
 
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Ben's referring to lab-style lasers mostly I believe, but there are some portables that can be run indefinitely.
 

steve001

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When you have time would you measure the divergence of the beam a its minimum spread. Judging from one of the pics I'd say it's very low, but I'd like a figure to know for certain.
Input the numbers here.
pseudonomen137's JScript mRad Calculator

Thanks
 

iskor12

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I am unable to make the measurement. I already returned the laser to it's owner. Sorry.

Unless I am mistaken...wouldn't it be ineffective to measure the divergence of the beam since it is adjustable? There would be no true way of measuring it.....am I wrong?

The beam starts out almost 26mm wide and can either get wider or smaller, depending on how it's adjusted.
 

Trevor

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When you have time would you measure the divergence of the beam a its minimum spread. Judging from one of the pics I'd say it's very low, but I'd like a figure to know for certain.
Input the numbers here.
pseudonomen137's JScript mRad Calculator

Thanks
It's a thick beam (expanded) so that when it's focused to infinity, the divergence will be very, very low. Likely something on the order of a tenth of the divergence we're used to seeing, or better depending on the optics.

-Trevor
 

steve001

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I am unable to make the measurement. I already returned the laser to it's owner. Sorry.

Unless I am mistaken...wouldn't it be ineffective to measure the divergence of the beam since it is adjustable? There would be no true way of measuring it.....am I wrong?

The beam starts out almost 26mm wide and can either get wider or smaller, depending on how it's adjusted.
No, it wouldn't be ineffective. When the beam is adjusted for minimal spread it will have one divergence value as will it have another divergence value when adjusted for maximal spread. In short you'll have different milliradian values for each end position and all positions in between. I believe at the position of minimal spread the beam will be *optimally collimated unless this device can be focused at close distances. In that case the optimal collimation position will occur at some point before minimum focus distance.

*looking at the Flash Animation on the page indicates that is the case.
ND5 Green Laser for search and rescue, hunting | Laser Genetics
 

iskor12

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I have a feeling either I or you don't understand each other.

At 3ft away from the laser....I could make the beam/dot 26mm+ or less than 1mm like so.

It was the same way at 25ft away as well.
It just depended on how I adjusted the focus. The focus has a huge range.
 




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