Looking For a Specific Red Laser

[Tmack]

. I can see them beam nicely with the 700mw 638 nm. Just discovered that ten min ago!!!

 

[NO4H99]

Here's your link: LP 638nm 660nm 5-130

before you buy it, you might want to check out the b/s/t section though

good luck.

 

[Tmack]

http://laserpointerforums.com/f39/lazerer-rifle-200mw-650nm-red-laser-kit-50-a-85876.html

Right in the forum.

 

[Encap]

Grainde "You can easily see 20 mW of 638 in a darkened room. If you want a nice little visible pointer, have a look at the laserbtb website. They have 20 mW 635 (or 638?) pens which are very good."

I want a link to the one he's talking about.

If you want to see a beam get the 100mW 635nm single mode.

 

[JayC]

He's saying I'll be able to see the beam if it's 20mW. Why pay double for 100mw? I don't think I need that much power.

 

[Tmack]

I highly doubt you could see 20mw beam. Unaided . I have a 280 mw 650 and can barely see the beam in pitch black. The 700mw 638 I just got has a good beam, but I wouldn't call it bright.

 

[JayC]

Darn... So would I be able to see the 100mW from lsaerbtb? Would that work out? I mean, the crappy WL Nano has a visible beam and it's "100mW" (Quotations to indicate that it's underspec but you know that).

 

[Tmack]

Well the more the merrier. It's just the color your looking for isnt the best for a good beam. A 445 has a very nice beam due to their power. A 1w 445 has a very bright beam. You can get those for around 100$ from a member. But if your really after a red then I would get the strongest 638 you can afford.

 

[JayC]

Yes, red is the next in my collection because I have two great green lasers. Thanks for your help.

 

[Atomicrox]

650nm 200mW is *barely* visible here. At the (far less polluted) city I used to live in it wasn't visible at all.

638nm 400mW is very visible but not to the point of being "solid" or bright. Maybe comparable to a 30mW green or something. The dot, OTOH, is insanely bright. The beam shape is very lineish, though. Mine is this one, but I got an overspec back in the day when Lazerer was still a good shop.

I don't think 20mW of 638nm will be very visible...

 

[Encap]

Darn... So would I be able to see the 100mW from lsaerbtb? Would that work out? I mean, the crappy WL Nano has a visible beam and it's "100mW" (Quotations to indicate that it's underspec but you know that).

Beam visability depends upon atmospheric conditions i.e in fog beam is most visible.

On a clear night I also doubt you are going to see a 20mW 635nm beam.

A 100mW you should be able to see a faint/weak beam under clear clean air conditions.

Keep in mind a 500mW 635nm has a beam about the same as a 50mW 532nm green.

 

[The Lightning Stalker]

Okay, now we're definitely into the range where you're going to need the safety glasses.

 

[JayC]

I thought it would be cool to get a red laser, but it's turning out to not be as worth while as I thought. I think I'll be sticking to green and blue.

 

[Tmack]

Blue. Go blue.. Red was my last stop on the wallet draining train.

 

[The Lightning Stalker]

kthxbye

 

[ultimatekaiser]

Yes I'd recommend about 80-100mW of 635nm. It's about 3x as bright as 660nm and is quite affordable. It's got a hint of orange to it and is much easier to see. I can see a 5mw beam if this color but it's very faint. 100 will be much more visible without breaking the bank entirely. But visibility-wise red in general is poor for beam sighting. And it's still going to be faint