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evaluation 30mW green laser!!

marianne

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this laser is a 30mW green, sent to me for evaluation and review by optotronics, who are *considering* selling them. the laser arrived, packaged nicely, bubblewrapped and in a nice simple black cardboard box with a magnetic latch. being cardboard, i'm not sure how well the box will last over time, but it seems strong enough and i almost never use the boxes lasers come in anyway. the instructions that come with it aren't too badly written, certainly not the terrible engrish that comes with a lot of things, though they're a bit unclear in places - for example, "Unscrew the end cap, insert batteries with positive end upward" makes no sense as which direction on a laser pointer is up, exactly? but, negative end towards the spring seems to work, which would make "upward" (or positive) be the end that doesn't emit light, same as every other green laser i've seen. i guess they expect people to point lasers at the floor :) according to the instructions, the warranty is only 30 days, but optotronics may give their own longer warranty on these, i'm not sure. i hope they do!

as for the laser itself - it seems to be a standard new wish type laser. this is the first one of these i've ever had, and i really like the style of it. the rubbery black coating feels nice in my hand, the laser weighs a little more than a CNI, and while unscrewing it in the middle to insert batteries is a bit strange at first, it's a lot less fiddly than a tiny end cap can be. almost certainly harder to lose, too! the button feels a tiny bit loose and wobbley, but it has a nice sturdy click when pressed, nicer than the slightly spongey feel of a CNI's button. the laser is about 10-15mm longer than a CNI, the only problem i have with this is that it won't fit into a dragon case, but oh well, not the end of the world! i like the silver and black colouring, looks a lot better real life than pics of these i've seen, and i guess the dimpley things near the emitter end are aesthetically nice, it was a bit odd that the sticker was on the wrong end of the laser, though i'm not really one to care too much about how a laser looks. performance is much more important :)

when used, the laser has a nice bright green dot, and usually a fairly easily visible beam (easy to spot at night, fainter and harder to see in the daytime but still there). i haven't got stuff to measure divergence with, but pointing it at far off objects it looked lower than a CNI but higher than a WL executive. with my shaky hands, it's not really a burner at all... it can burn thin dark plastic with a focusing lense, but not unaided. matches, even sharpied and using a lense, just will not light (i've heard of people managing to light a sharpied match with a 30mW with a lense, but again, my hands are pretty shaky so it's not something i can manage). i also tried popping black balloons, at two feet, one foot, and six inches, the laser would distort the balloon's surface slightly but not pop it. when i used a focusing lense though, it took about 5-10 seconds. even pointing the laser at sharpied skin, it felt kinda warm but never too hot or burny. but this is only 30mW, so i never expected it to be a burner! i've had no problems using it when room temperature was really cold, or really warm.

overall, i really like this laser a lot. it feels good to hold, it looks good, it makes a nice bright dot and beam, it's not picky about operating temperature, and it's nice to have a decent, reliable mid-range green laser. i've had no issues with it, no mode hopping, a nice stable brightness, and after playing with it a lot the past couple days the batteries still seem pretty much fully charged (i have some of those alkalines with the power meter thingy appearing on the side when you press in two spots on the battery). i have heard that these emit proportionately high IR, 10%ish rather than the usual 1%ish, but 10% of 30mW is still only 3mW of (unfocused, diffused) IR, so that amount doesn't worry me at all. i am posting this laser to Merl, to get proper readings on the power levels (both green and IR), so we'll have some more precise specs in a few days or so! as it is, my personal opinion is that optotronics should sell these lasers, even if they do output a few mW of IR :)

here is a pic of the laser itself, in one piece and unscrewed:


this is the beam, outside at night:

a comparison shot, 5mW green leadlight on the left, the 30mW green in the middle, 90mW nova X-85 on the right:
 

Rhith

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Wow! Great review! I can't wait to get my True 30mW from DX. Those beam shots are really powerful!
 

marianne

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hehe thanks, i think the exposure may have been a bit high and again, shaky hands didn't help!
 

Merlous

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Nice write up mari, it normally takes me a few beam shots to get anything near a decent one that I like so dont worry.

When I get this in I will be testing it for Green and IR on the LPM-1 and the Coherent Lasercheck with the LPM-1 giving us a nice output graph :cool:

I have never seen one with the sticker on that end except yesterday on Ebay I saw what looked like a New Wish Laser but the Diode was on the shirt clip end so it would make sense for that laser to have the sticker there...
 

Rhith

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The sticker on mine was fine and in the correct position. ;D We'll see about my 30mW when it gets here though.
 

marianne

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well it's not exactly a huge criticism that the sticker's on the wrong end :p i miss the laser now that it's been posted to Merl!! i hope i get it back quickish!! of course Merl is welcome to play around with it for a while and give his own opinions :) a double review! hehehe...
 

Merlous

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marianne said:
i miss the laser now that it's been posted to Merl!! i hope i get it back quickish!! of course Merl is welcome to play around with it for a while and give his own opinions :) a double review! hehehe...
Aww thatnks Mari, I will try to be as quick as I can with it, I had better make my Data Cable up soonish now I have the right schematic (;
 

marianne

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Merl said:
Aww thatnks Mari, I will try to be as quick as I can with it, I had better make my Data Cable up soonish now I have the right schematic (;
hehe yep you'd better be quick or the forum peoples will become impatient!!! by the way, don't suppose you want to swap your 30mW blue for my 30mW green? :p
 
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I'm really excited about seeing the output graph because this laser is more within my price range than similar Novas.
 
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Rhith said:
Wow! Great review! I can't wait to get my True 30mW from DX. Those beam shots are really powerful!
i see in ur sig that ur dx 30 has arrived

can u tell me how long did it take it to arrive?

coz i ordered one on 24-dec, shipped 01-jan and still hasnt arrived (today: 22-jan) :(

thanks
 

bledis

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Nice review, im happy now with my DX 30mW, good beam I love it! Not too powerful and thats good for eyes ;)
 




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