Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

How to Register on LPF | LPF Donations

Search results

  1. S

    450nm for astronomy pointing?

    Very tempting. What's the price? Are these things stil pot regulated so that I can tweak it at my personal need? You know, make it a little bit dimmer or brighter?
  2. S

    450nm for astronomy pointing?

    I know. I am currently using a 5mW green. But as I wrote above, green DPSS lasers tend to 'die' when exposed at near freezing temperatures, because the optical train in the module shrinks out of collimation. Every year, it's the same pain when winter arrives and nighttemperatures drop. You see...
  3. S

    450nm for astronomy pointing?

    That sounds like very good news to me! Jubathoph, can you compare it to the beam of a 5mW green? Coby, I see that you're also from B, and Blord also. Any chance that we can discuss further on this in our native language? (assuming you are Flemish)(aucun problème si tu es Francophone) That...
  4. S

    450nm for astronomy pointing?

    Hi, I am an astronomer, and I like usig lasers for pointing my telescope at night. So, I used a 5mW green (beam visibility is OK for me) BUT the greenies allways die from cold temps because they are DPSS. I can use greenies only in summer. After that, I went with a 300mW red. Left that one...
  5. S

    The O-Like 250mw red power rock 250mw red laser.

    Probably you killed the battery by undercharge. They die below 3.0V Mine died the same way. The O-like batteries are unprotected and actually poor quality. The chargers are also crap. Better go for this : Ultrafire WF-188 Charger for 14500 / 17500 / 18500 / 18650 / RCR123 3.7 volt Lithium...
  6. S

    Astronomy Red Laser Pointer

    I'm an astronomer, too. If you are serious with the hobby (go to dark sky sites with the telescope and so) you should consider some things. Green lasers more than 5mW are far to bright as looking along the beam will destroy your slowly adapted nightvision in milliseconds. On a darksky site a...
  7. S

    SALE PHR-803T & LPC-815 $13 USD  INSTOCK

    Re: SALE PHR-803T $13 & LPC-815 $13.50 INSTOCK are these still available?
  8. S

    Newcomer -question about astronomy bluray use

    Yeah, we've tried the hot pads, but it's not that comfortable. Attaching the heating pad introduces vibrations that can either disturb the telescope's view, or it can even make that pointer and telescope are out of alignment. Kinda fuzzy. There must be a better way.
  9. S

    Newcomer -question about astronomy bluray use

    Hi all! I am from Belgium, Europe. I am new here, but not new to lasers. I've built myself a 200mW red with aixiz components and before that I modded a 5mW DPSS greenie to about 30mW. Both work fine, but my question goes about a Blu Ray. I am not about burning things. Me and some friends are...


Back
Top