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Old 03-24-2017, 12:50 AM #1
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Default Beam and Dot Photos

I've been messing around trying to take better pictures of the laser beams and dots using my not very good camera, The dot was very easy to get using laser safety glasses as a filter......



But the beam not so much.......



Are there any tips or suggestion anyone has for taking beam shots with a digi camera ?


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Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - OPT Laser 2X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-24-2017, 08:25 AM #2
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Default Re: Beam and Dot Photos

For taking beamshots you'd want to avoid facing the dot(obviously) as that will easily overpower the light coming from beam. What you can do is invest in a good $30 fogger to bring out the beam and then you can take pictures of both the beam & dot at the same time

Nice pictures

-Alex
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Old 03-24-2017, 09:25 AM #3
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Default Re: Beam and Dot Photos

Yep, facing away from the dot helps like Alex suggested. Also the beam is noticeably brighter when facing the aperture due to scattering. If you must face towards it, then use a black matte (burnproof ) surface to dim the dot down.
Fog is a brilliant tool, but with high powered lasers it can easily lead to overexposure if not careful.
Brucemir, Radim and ArcticDude to name a few may have some helpful suggestions. What camera do you have, as it may help us to understand your technical limitations.
That dot is lovely and round BTW.
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If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
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Bang good is a good source for many electrical items and are often cheap and reliable.
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Last edited by CurtisOliver; 03-24-2017 at 09:26 AM.
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Old 03-24-2017, 09:32 AM #4
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Default Re: Beam and Dot Photos

I finally figured out a setting to use to take a picture of the beam in the night sky and at the same time see the laser host for some context ! In reality the beam looks much thinner, It's hard to take a picture holding the camera still and hold the laser to but the pictures are getting better......


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303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

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Old 03-24-2017, 09:47 AM #5
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Default Re: Beam and Dot Photos

As mentioned above, try to point the dot out of picture. The best results of beam visibility are if you take a pic close to the beam in direction (with angle, not completely in the direction) of source. But be extremely careful, not only to eyes but to camera as well. This is extremely dangerous and you might damage or kill your camera easily even with scattered/difussed light. Also avoid or reduce to have output aperture on pic as it is like a dot - too much light. Also try to set longer exposure (best on manual mode - if you have remote control on bulb, if not try to set timer not to move with camera during expo and set some time - you can even try to cover lens as replacement of remote control), maybe fog or smoke. I also use a lens hood to reduce stray light and likelihood of hitting camera lens. And as I use long expo (on tripod or fixed position) I use small aperture (higher F number) and small ISO to reduce noise. However the smaller aperture and the lower ISO the more time exposure you need. And do not forget to focus before.

Edit: Nice pic - I think you have got it already.

Edit 2: Check my pic The Laser Sun (in opening post of my laserpainting thread) I used the tricks mentioned above and one more - I hit the tree just with the part of the beam section at its edge not to over expose the dot and to get beam with dot on one pic. And no smoke or fog were used - just composition slightly facing towards source of beam. Also this created an illusion of real sun as the tree was hit on carefully selected place - edge.

Edit 3: If you use higher F numbers, the point light sources - like dot - create nice star effects (due to size and shape of camera aperture), just do not use too high F number or you get interference pattern of light bending on camera aperture. More the issue of coherent light than normal light.

Edit 4: Safety tip - cover camera lens during laser composition setup - once you are sure the camera lens cannot be hit go for exposure.
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Last edited by Radim; 03-24-2017 at 11:41 AM.
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Old 03-24-2017, 09:54 AM #6
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Default Re: Beam and Dot Photos

There you are, a laser photographer's advice for you.
That's a lot better Accutronitis, nice shot!
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Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




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Old 03-24-2017, 10:11 AM #7
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Default Re: Beam and Dot Photos

Thanks, Oliver.
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405 nm | 500 mW | Wicked Lasers Lunar
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532 nm | 100 mW | Wicked Lasers Evo
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589 nm | 50 mW | Dragon Lasers Spartan
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Old 03-24-2017, 12:21 PM #8
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Default Re: Beam and Dot Photos

You're welcome Radim.
Keep at it Accutronitis, you'll get envy worthy pics in no time.
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Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
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Old 03-24-2017, 02:41 PM #9
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Default Re: Beam and Dot Photos

I just want everyone to see what I see !
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - OPT Laser 2X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

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Old 03-24-2017, 02:44 PM #10
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Default Re: Beam and Dot Photos

You wait until you have to photograph 589,561,473,488 etc. Then you really want people to see what you see, as it is hard to get the colour balance right.
Good job so far.
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




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Old 03-24-2017, 03:19 PM #11
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Default Re: Beam and Dot Photos

Thanks But I'm only about half way to getting a picture of what I really see but I'm moving in the right direction !
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - OPT Laser 2X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44-81 8+ Watts at 4.5 Amps 450nm Diode In A 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander w/Jetlaser Output Lens Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-24-2017, 03:21 PM #12
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Default Re: Beam and Dot Photos

I wouldn't worry. I'm terrible at photography. Some of my beam shots was with a hired DSLR and they are still not brilliant.
It takes practice and skill, which isn't gained straight away.
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
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Old 03-24-2017, 04:10 PM #13
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Default Re: Beam and Dot Photos

If your camera supports RAW - use it, jpeg is not suitable as you have to balance white and do all the settings on camera and you loose data due to compression by any edit you do. Blue color is the hardest to photograph IMO.

You might find usefull my earlier post:
Quote:
Originally Posted by Radim View Post
Well, its a bit tricky. Of course manufacturers tend to capture what human eye see by their cameras. But there exist some color spaces (like for example CMYK for printed stuff - subtractive mixing, sRGB and Adobe RGB for displayed stuff - additive mixing). Cameras use some RGB spaces, however the color space of human perception is much wider than most commercial technology can capture and display. For example, when I took some pics of 520 nm and 532 nm, they look about the same, however you see them different. And the blue is the most tricky in my experience so far.

Also human brain just adjusts color perception according to lighting, that's why you have to balance white differently for example under lightbulbs and under daylight lighting.

I fight with that stuff, when I'm adjusting my artworks to look like by human eye as much as possible, but with precise laser wavelengths it is just not possible due to current technology imperfections.

Check this (look for 520 nm where it lays):


(source is wiki - just click on pic for more info)


Regarding IR - it is not supposed that IR is present much in most cases that much to influence picture too mich in most cases: In cheap cameras (like mobile phones) you can clearly see it, however DSLR and more serious cameras are IMO somehow IR filtered, how would you take pic of fire for example? There is a lot of "heat" radiation - IR. Try it with mobile and with some DSLR and you will probably see the difference.

Just for interest look here: https://www.extremetech.com/electron...m-super-camera

Very interesting photography under IR.
Original post is here.

In addition I post some tips & tricks in my laserpainting thread as well.
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532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

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589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

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LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

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Last edited by Radim; 03-24-2017 at 04:12 PM.
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Old 03-24-2017, 04:13 PM #14
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Default Re: Beam and Dot Photos

Very useful Radim.
I usually take pics with my phone, but I will bare this in mind the next time I use a DSLR.
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




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Old 03-24-2017, 04:23 PM #15
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Default Re: Beam and Dot Photos

It is just more work with RAW as you need to make pics from it in post processing sw like photoshop (it does not really make sense to take hundreds pics and spend week on them - quality has to come over quantity when using RAW). But it is worth to do to get the best from your camera.

Edit: In terms of color space most devices like monitors use sRGB, but I turned to take pics in AdobeRGB and switch them to sRGB in computer as I do not have monitor for AdobeRGB. Tip: For editing it is wise to calibrate monitor or at least use highest brightness and good light conditions. But these are just kind of details for most users.
__________________
"Lasers are s3xy."
"That feeling when you see colours as their wavelengths."
"Laserpainting is a drug. Do not try it."


Current collection:
405 nm | 500 mW | Wicked Lasers Lunar
445 nm | 3.5 W | Wicked Lasers Arctic
473 nm | 100 mW | Jet Lasers PL-E Pro (Review)
520 nm | 1 W | Wicked Lasers Krypton
532 nm | 100 mW | Wicked Lasers Evo
532 nm | 800 mW | Sky Lasers PL

532 nm | 1.4+ W | Optotronics RPL-II
589 nm | 50 mW | Dragon Lasers Spartan
635 nm | 750 mW | Wicked Lasers Inferno
1 W RGB projector
(+ some laser pointers)

Laserpainting artworks:
LPF thread: Radim's laser painting
Latest laserpainting: Soul in the Surreal world
Instagram: @radimmatera

Please use hashtag #laserpointerforums for laser related stuff when you post on social media to help us promote LPF. Thank you.

Last edited by Radim; 03-24-2017 at 04:27 PM.
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Old 03-24-2017, 04:26 PM #16
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Default Re: Beam and Dot Photos

Yes, more work but worth it in the end. Although, I would love a point and shoot camera that matches our eye perfectly.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter
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