Yes. I bought a red laser for around $12 in Fry's Electronics and a green one that cost over $100 from Scope City in San Francisco. They are both the same power output (5mW IIRC). The red laser is completely invisible when used as a star pointer and would be useless in that application. The green one makes a line that (although feint) you can easily follow up into the sky. I have no idea why there is so much difference between red & green light, and I was initially sceptical given the price difference. However, having done a side-by-side comparison, the difference between red & green is very significant. IMO, If you want a star pointer, you need a green laser. YMMV.

--Tim Long

-----Original Message-----
Sent: 22 March 2005 14:02
Subject: green vrs red lazer

I have a red laser that I use for collimation. The green one seems to be the color of choice for pointing out stars to people. There's a tremendous difference in price. Is the green one that much better?

Keith
Astronomy Website
http://www.willowberry.net/keithnk_m42/



====================================================
For help and information on the Acceptable Use Policy, visit http://www.mapug-astronomy.net/pages/Subcrb_AcceptUse.html

MAPUG is hosted by Software-y-Ddraig (Dragon Software) http://syd.tigranetworks.co.uk ====================================================



====================================================
For help and information on the Acceptable Use Policy, visit
http://www.mapug-astronomy.net/pages/Subcrb_AcceptUse.html

MAPUG is hosted by Software-y-Ddraig (Dragon Software)
http://syd.tigranetworks.co.uk
====================================================

View index by [date] [author] [subject]
Previous message: ETX or LX200 8", Email address hidden
Next message: Re: ETX or LX200 8", John Hilliard
Next message in thread: Re: green vrs red lazer, peter_j_cooke
Previous message in thread: green vrs red lazer, Keith