Old 09-05-2015, 08:25 PM #1
autonomousperson's Avatar
Class 1M Laser
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
autonomousperson autonomousperson is offline
Class 1M Laser
autonomousperson's Avatar
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
Default Lens choice for first high power laser

I was looking at the g2/1 lens and also the 3 element glass lens for my first high power laser with the mtype m140 laser. Should I go with the g1/2 or the 3 element?


autonomousperson is offline   Reply With Quote


















Old 09-05-2015, 08:50 PM #2
doubleone44's Avatar
Class 2 Laser
 
Join Date: Aug 2014
Location: Leiden, The Netherlands
Posts: 259
Rep Power: 5642
doubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond repute
doubleone44 doubleone44 is offline
Class 2 Laser
doubleone44's Avatar
 
Join Date: Aug 2014
Location: Leiden, The Netherlands
Posts: 259
Rep Power: 5642
doubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond reputedoubleone44 has a reputation beyond repute
Default Re: Lens choice for first high power laser

Do you care about power or about beam quality? If 1 go with G-lenses, if 2 go with 3-elements
doubleone44 is offline   Reply With Quote
Old 09-05-2015, 10:02 PM #3
autonomousperson's Avatar
Class 1M Laser
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
autonomousperson autonomousperson is offline
Class 1M Laser
autonomousperson's Avatar
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
Default Re: Lens choice for first high power laser

Quote:
Originally Posted by doubleone44 View Post
Do you care about power or about beam quality? If 1 go with G-lenses, if 2 go with 3-elements
I'd think beam quality is more important right now. What is a g2 lens? I know the 3 element glass lens is 3 pieces of glass. Is the g2 the same?
autonomousperson is offline   Reply With Quote
Old 09-05-2015, 10:09 PM #4
autonomousperson's Avatar
Class 1M Laser
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
autonomousperson autonomousperson is offline
Class 1M Laser
autonomousperson's Avatar
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
Default Re: Lens choice for first high power laser

Quote:
Originally Posted by autonomousperson View Post
I'd think beam quality is more important right now. What is a g2 lens? I know the 3 element glass lens is 3 pieces of glass. Is the g2 the same?
Ah nvm, im guessing single element means 1 lens
autonomousperson is offline   Reply With Quote
Old 09-06-2015, 01:30 AM #5
Alaskan's Avatar
Super Moderator
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,198
Rep Power: 1081900
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Super Moderator
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,198
Rep Power: 1081900
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Lens choice for first high power laser

With a G2 single element lens lens you have less loss and therefore more power, but the divergence is a little wider. With a 3 element lens there is more loss, but the spot will be more powerful at a great distance. The reason the divergence is better with a 3 element lens is because its focal length is twice as long as a G2 lens, allows the beam to expand a little before being collimated, expanding the beam always reduces the divergence.

A three element lens will cut some of the edges of the beam off when used with some multimode diodes, so there is added loss due to that too, but the beam is nicer and slightly less divergence or spreading of the beam in the distance. If you want max power in the distance put a beam expander on your pointer, the output will become a fat beam, but will allow putting spots on the base of clouds where a multimode normally disperses too much to do that, unless the clouds are low.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 09-06-2015 at 01:39 AM.
Alaskan is offline   Reply With Quote
Old 09-06-2015, 01:33 AM #6
autonomousperson's Avatar
Class 1M Laser
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
autonomousperson autonomousperson is offline
Class 1M Laser
autonomousperson's Avatar
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
Default Re: Lens choice for first high power laser

Do you guys have any recommendations for a host? I have about 20ish m140 diodes and I cant seem to find a good and cheap host.
autonomousperson is offline   Reply With Quote
Old 09-06-2015, 01:46 AM #7
marcuspeh's Avatar
Class 2M Laser
 
Join Date: Nov 2014
Posts: 663
Rep Power: 15436
marcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond repute
marcuspeh marcuspeh is offline
Class 2M Laser
marcuspeh's Avatar
 
Join Date: Nov 2014
Posts: 663
Rep Power: 15436
marcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond repute
Default Re: Lens choice for first high power laser

You could get a wf501b with heatsink from budgetbeam
marcuspeh is offline   Reply With Quote
Old 09-06-2015, 01:52 AM #8
Alaskan's Avatar
Super Moderator
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,198
Rep Power: 1081900
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Alaskan Alaskan is offline
Super Moderator
Alaskan's Avatar
 
Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,198
Rep Power: 1081900
Alaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond reputeAlaskan has a reputation beyond repute
Default Re: Lens choice for first high power laser

Ehgemus is selling hosts right now, look in the for sale section.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3
Alaskan is offline   Reply With Quote
Old 09-06-2015, 04:04 AM #9
RYDorDIE278's Avatar
Class 2M Laser
 
Join Date: May 2013
Location: New Zealand - Taranaki
Posts: 542
Rep Power: 1337
RYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond repute
RYDorDIE278 RYDorDIE278 is offline
Class 2M Laser
RYDorDIE278's Avatar
 
Join Date: May 2013
Location: New Zealand - Taranaki
Posts: 542
Rep Power: 1337
RYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond reputeRYDorDIE278 has a reputation beyond repute
Default Re: Lens choice for first high power laser

What about the g7 lens from Sanwu? they have good beam quality like 3 element and better power than 3 element lens
__________________
LaserZ:
405nm 1W ZASER w/Grenade Tube
445nm 1.8W C6 Jayrob D.I.Y. Kit
445nm 2.1W+ 501b By TheJoker301
445nm 3.5W Copper DominatoR by Blord
520nm 200mW+ 501b By TheJoker301
650nm 300mW from NO4H99

LPM:
*Laserbee 2.5W USB*

Battery Charger:
*Ultrafire WF-188*
*Nitecore Intellicharger i4*
*OPUS BT-C3100 v2.1*
RYDorDIE278 is offline   Reply With Quote
Old 09-06-2015, 05:01 AM #10
autonomousperson's Avatar
Class 1M Laser
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
autonomousperson autonomousperson is offline
Class 1M Laser
autonomousperson's Avatar
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
Default Re: Lens choice for first high power laser

Will take a look, DTR only has g1/2/9 Where would I get one?
autonomousperson is offline   Reply With Quote
Old 09-06-2015, 06:30 AM #11
marcuspeh's Avatar
Class 2M Laser
 
Join Date: Nov 2014
Posts: 663
Rep Power: 15436
marcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond repute
marcuspeh marcuspeh is offline
Class 2M Laser
marcuspeh's Avatar
 
Join Date: Nov 2014
Posts: 663
Rep Power: 15436
marcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond reputemarcuspeh has a reputation beyond repute
Default

Quote:
Originally Posted by autonomousperson View Post
Will take a look, DTR only has g1/2/9 Where would I get one?
You can get one from SanWu. Pm Podo if you want to buy
marcuspeh is offline   Reply With Quote
Old 09-06-2015, 12:06 PM #12
Lifetime17's Avatar
Class 3B Laser
 
Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 3,841
Rep Power: 776848
Lifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond repute
Lifetime17 Lifetime17 is offline
Class 3B Laser
Lifetime17's Avatar
 
Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 3,841
Rep Power: 776848
Lifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond reputeLifetime17 has a reputation beyond repute
Default Re: Lens choice for first high power laser

Hi, Simple G2 for power and 3 element beam quality.

Rich
Lifetime17 is offline   Reply With Quote
Old 09-06-2015, 12:55 PM #13
Pman's Avatar
Class 3B Laser
 
Join Date: Nov 2012
Location: Rochester, NY
Posts: 4,395
Rep Power: 158598
Pman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond repute
Pman Pman is online now
Class 3B Laser
Pman's Avatar
 
Join Date: Nov 2012
Location: Rochester, NY
Posts: 4,395
Rep Power: 158598
Pman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond reputePman has a reputation beyond repute
Default Re: Lens choice for first high power laser

Simple, buy both of the above Seriously. It only takes a moment to swap lenses and a 3-element isn't much $ to tack on so you can have the best of both worlds AND not only do you get to see the difference with your own eyes but have another lens to swap or for something else.
Generally when people join they initially just want power but over time you really start to care about how the dot/beam quality plus why not tack on a single element while your at it. IF you pick 2 though go with the G-2 and a 3-element. You will not regret it and he ships fast for little $.
I don't own a G-7 yet but have heard good things.
On a side note, does anyone know for certain what name goes with the lenses that Eitan was selling in the 515nm GB? I keep referring to them as the 515nm GB lenses and I would rather say what we actually ended up calling them (such as G-9 or S1 or whatever). Weird that I can't seem to figure it out.
__________________
I'm not strange, I'm limited edition!

*Jayrob Star Trek Phaser*
# of Lasers - ***
# of DTR/510 laser adapters *
# of eGo/510 mods **
# of Batteries - ***
Wavelengths - 405, 445, 447, 450, 455, 462, 464, 470, 473, 473+, <515, 515, 520, 532, 589, 635, 638, 650, 660, 685, 808, 830, 980
Projector - PD2
O-Like mini red/green to yellow module
Beam Expanders - Dragon Lasers 2x & 5x with universal adapters
LPM's - Modified AW TEC, Custom 6.8W+ Ophir
Datalogger - ARG
Chargers - Ultrafire WF139, (2) Xtar WP2, Nitecore i2, UM20, (3) i4, (2) D4 , Opus BTC-3400 V2.2
Phlatlights - Jayrob PT-54 green 1000lm maglight, PT-54 red project box build, (3) PT-54 red, (2) PT-54 orange (3) PT-121 red, (2) PT-121 blue, (1) PT-121 green project work in progress 5000lm (1) PT-121 green

Links:

**"Pen Laser Thread"**
"Post your pics of unique builds no-one else has"
"Make your way overspec $5 pen focusable"
"Share your inexpensive builds thread"
"Pman special"

Last edited by Pman; 09-06-2015 at 01:14 PM.
Pman is online now   Reply With Quote
Old 09-06-2015, 07:32 PM #14
autonomousperson's Avatar
Class 1M Laser
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
autonomousperson autonomousperson is offline
Class 1M Laser
autonomousperson's Avatar
 
Join Date: Sep 2015
Location: LA, California
Posts: 122
Rep Power: 64
autonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond reputeautonomousperson has a reputation beyond repute
Default Re: Lens choice for first high power laser

Why does the G series lens cost significantly more? It would make sense if the 3 element would cost more.
autonomousperson is offline   Reply With Quote
Old 09-06-2015, 07:38 PM #15
joeybab3's Avatar
Class 2M Laser
 
Join Date: Dec 2014
Location: California
Posts: 638
Rep Power: 44120
joeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond repute
joeybab3 joeybab3 is offline
Class 2M Laser
joeybab3's Avatar
 
Join Date: Dec 2014
Location: California
Posts: 638
Rep Power: 44120
joeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond reputejoeybab3 has a reputation beyond repute
Default

Quote:
Originally Posted by Pman View Post
Simple, buy both of the above Seriously. It only takes a moment to swap lenses and a 3-element isn't much $ to tack on so you can have the best of both worlds AND not only do you get to see the difference with your own eyes but have another lens to swap or for something else.
Generally when people join they initially just want power but over time you really start to care about how the dot/beam quality plus why not tack on a single element while your at it. IF you pick 2 though go with the G-2 and a 3-element. You will not regret it and he ships fast for little $.
I don't own a G-7 yet but have heard good things.
On a side note, does anyone know for certain what name goes with the lenses that Eitan was selling in the 515nm GB? I keep referring to them as the 515nm GB lenses and I would rather say what we actually ended up calling them (such as G-9 or S1 or whatever). Weird that I can't seem to figure it out.
I was just going to ask that, im not sure either.
joeybab3 is offline   Reply With Quote
Old 09-06-2015, 08:15 PM #16
Pi R Squared's Avatar
Class 3B Laser
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 102502
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Pi R Squared Pi R Squared is offline
Class 3B Laser
Pi R Squared's Avatar
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 102502
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Default Re: Lens choice for first high power laser

Quote:
Originally Posted by autonomousperson View Post
Why does the G series lens cost significantly more? It would make sense if the 3 element would cost more.
The genuine G2/G1 lenses are made in the U.S. and have a high quality anti reflective coating. The other cheaper single element lenses and the 3 element lenses are made in China.

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter


Everyone please post here: Countries of LPF. Where are you? <link>
___________________________________________
The light that shines twice as bright burns half as long.
Pi R Squared is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 01:15 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC