Old 10-27-2016, 07:32 AM #1
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Default So... is 589nm really worth it?

Hello LPF,

As you can see by my signature below I already own a 594 Rigel and was debating whether spending some money to get myself a 589 is really worth it. I've reviewed a couple threads on LPF and even went on a wavelength tool conversion and while some people often tell me they are quite difference in person, every other source tells me they look almost similar in color! I mean, I could see wanting it to try and collect every single wavelength but is it worth it just color wise?

Thoughts?

-Alex


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Old 10-27-2016, 07:47 AM #2
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Default Re: So... is 589nm really worth it?

Quote:
Originally Posted by Hap View Post
Hello LPF,

As you can see by my signature below I already own a 594 Rigel and was debating whether spending some money to get myself a 589 is really worth it. I've reviewed a couple threads on LPF and even went on a wavelength tool conversion and while some people often tell me they are quite difference in person, every other source tells me they look almost similar in color! I mean, I could see wanting it to try and collect every single wavelength but is it worth it just color wise?

Thoughts?

-Alex

Get it while you can. It's awesome and if you have blue googles that block light up to 750 or so you can see IR florescence on wood. my 612 hene is too high to do it.
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Old 10-27-2016, 07:48 AM #3
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Default Re: So... is 589nm really worth it?

get a 620nm!! nobody have it yet...
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Old 10-27-2016, 07:55 AM #4
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Default Re: So... is 589nm really worth it?

Quote:
Originally Posted by joeyss View Post
Get it while you can. It's awesome and if you have blue googles that block light up to 750 or so you can see IR florescence on wood. my 612 hene is too high to do it.
Quote:
Originally Posted by tomfire1735 View Post
get a 620nm!! nobody have it yet...
Haha, thanks guys!

@joeyss Yeah, especially if the FDA manages to pass a ban on all laser pointers below 610nm that might be a serious problems to getting on of these. I'll give it time before buying one however as they aren't cheap.

-Alex
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Old 10-27-2016, 08:36 AM #5
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Default Re: So... is 589nm really worth it?

Quote:
Originally Posted by Hap View Post
Haha, thanks guys!

@joeyss Yeah, especially if the FDA manages to pass a ban on all laser pointers below 610nm that might be a serious problems to getting on of these. I'll give it time before buying one however as they aren't cheap.

-Alex
banning blue ray is just dumb tho my 50mw can't make it up past ~70 feet at night when a much lower 5mw 650 can.


plus 405 is much more scattered than red and dimmer in lumens per watt.


if they decide to ban the WLs there's still a 90 day public comment window before it becomes law.

also : Laser Pointers may be defined as handheld laser products designed for battery-powered operation that are manufactured, designed, intended or promoted to provide illumination, designation of a target or point of origin, or sighting, with no associated ["technological or scientific purpose" for the laser’s emission. Laser products are not excluded as laser pointers when used for visual entertainment, vision disruption or startle or novelty purposes.


what if your scientific purpose for 589 is to study ir florescence on organic objects and analyze optics due to the clean and good divergence of a DPPS system. LEDs amber 590 peak do not provide the single spectral line that a 589 laser does.
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Chrome 12x 405nm pen @ 475mw by Ra_pierce
~30mw newish 532nm Pen
~100mw IQS 532nm Pen
50mw 660nm DX pen
"5mw" overspec IQS Blu-ray does around 50mw
Spartan 589nm 50mw likely higher no lpm to test but skin feels warm.
3.107 watt 445nm zero laser
473nm labby peak at 34 mw
808nm over a watt from a 400mw green that came loose and lost the crystal set
980nm with weak cyan line focousable
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Old 10-27-2016, 09:47 AM #6
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Default Re: So... is 589nm really worth it?

One thing I have learned, where there are laws there are ways to get around them and banning something often just makes it more desirable. However, there could be lots of problems created by the law which are not warranted. Call 911 right now, Jonny saw someone using a green laser pointer outside, those are so dangerous they are illegal!
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Old 10-29-2016, 12:29 AM #7
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Default Re: So... is 589nm really worth it?

You know how at first it looks like some yellow traffic lights are more yellow and some are more orange, then you look closely and realize that it's really just ambient lighting conditions that makes the difference?

Well it's kinda the same with these. If you don't see them side by side, and only one or the other at a time, you'd likely never notice a difference. Side by side, the 589 almost always looks more yellow because they're almost always more powerful, which over saturates your eye. At the same power, they look basically the same.

Not worth it IMO to get a GLP-589, but a PGL-III-M/Spartan 589 at 90 or so mW would be a worthwhile investment.
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Old 10-29-2016, 07:16 AM #8
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Default Re: So... is 589nm really worth it?

Quote:
Originally Posted by Chicxulub View Post
You know how at first it looks like some yellow traffic lights are more yellow and some are more orange, then you look closely and realize that it's really just ambient lighting conditions that makes the difference?

Well it's kinda the same with these. If you don't see them side by side, and only one or the other at a time, you'd likely never notice a difference. Side by side, the 589 almost always looks more yellow because they're almost always more powerful, which over saturates your eye. At the same power, they look basically the same.

Not worth it IMO to get a GLP-589, but a PGL-III-M/Spartan 589 at 90 or so mW would be a worthwhile investment.
Thanks for your input Chicxulub! I agree, unless you get a high enough powered unit, for just 5nm spending hundreds kinda seems crazy

-Alex
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Old 10-29-2016, 11:45 AM #9
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Default Re: So... is 589nm really worth it?

I have wanted one, but when I see 40-50mw I haven't been excited enough to spend that kind of money on one, let alone 5mw.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3
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