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I commonly sight that calculator for brightness comparisons, but I have started to loose faith in it. According to it, a 100mw 450nm and 200mw 650nm should have the same beam brightness, and the red should have a much brighter dot, but when i tried my 100mw 450 and 200mw 650, I discovered this...

The 1.5w 532nm lasers from xpl should be brighter and much cheaper.

That makes sense. Blue wavelengths scatter more easily than green, hence why the sky is blue. That explains why the beams appear the same brightness and the dots don't.

people keep stating that rule of perception, but I can't convince myself it is true. Probably mainly because I don't have an lpm to compare two lasers, one with twice the apparent brightness of the other. Oh and about the googles I already have two of these: Eagle Pair® 190-540nm OD6 Slip Over...

Yes precisely. When I talk about beam visibility I mean two laser compared in identical conditions. For example a typical night outside. As you mentioned light in the blue wavelengths scatters more easily, thus causing the sky to appear blue. This could in turn lead to a blue laser with a much...

Does anyone have a 1,4 watt 520 they could sell, or could build me one? How much would it cost?

So I want to own the brightest diode handheld laser. For the longest time I thought this title went to the 1 watt 520s, but I have been hearing that some of the blue diodes may be brighter. Does anyone have personal experience comparing a 1 watt 520 to blue lasers? Mainly I am interested in beam...

I already bought one. Here the review I did. http://laserpointerforums.com/f44/skytech-dual-power-450nm-pen-review-97892.html

great work, but has anyone heard of this company? BitLasers

well 447nm is a pretty HIGH wavelength :crackup:

shame. What laser was it anyways?

I never thought of the batteries but that is a very good idea. For those we could probably just mention one site that is good, and not very expensive. We need a general disclaimer about sites like ebay and DX, but also list some known good sellers. Another thing. I was just browsing the web...

you could say "Under Investigation" for XPL. I am trying to decide if I want a laser from them, I also want to see the new host and maybe a review before purchasing anything though.

exactly. Id say with those sites its gamble, but there are a few well known sellers you could list. The cheap pens and 303s are always good for people just getting into the hobby.

Thanks hap. I just made a recent purchase from Skytech but only because they are having a clearance sale now. My shipping time was about a week and 3 days. Here is the review I did. If you do post it, I will edit it to make it a little better. Again thanks to everyone who helped, I had no idea...

yes, I wish CNI would still ship here. Wha tabout grey companies like Wicked Lasers, And companies like Ebay, DX, and aliexpress that are useful only for either beginer lasers, or certain sellers like XPL. Don't forget to mention the other laserbtb companies, which are fine except overpriced...

Thanks sta. On the other side of things, which compony do you think is the best overall. A few come to my mind. Laser btb(sky lasers and Skytech are also Laserbtb but overpriced), Sanwu, and Dragonlasers.

yes indeed. What about the other one?

what do you make of these companies: Green Lasers, https://insanitylaser.com/xpro

Wow $40 for a 303! Just wow. His account pic is also stolen. What should we do? Negative rep wall?