View allAll Photos Tagged laserpointer
*EXPLORED* YAY!!
SOOC except for contrast, sharpening and removing a blemish from the bottom.
14 second exposure. exterior light from LED flashlight, interior light from LASER pointer.
The Model? My old Canon F1
2009 A year in Pictures - #26
People gaze skywards at the public stargazing session, Milky Way Night, at the Rothney Astrophysical Observatory, operated by the University of Galgary. The city lights illuminate the clouds at left. This was August 30, 2014. Exposure was 13 - 20 seconds at f/3.2 with the 15mm lens and Canon 6D at ISO 4000.
A pair of students look at constellation maps while others use a laser pointer to identify constellations at the astronomy department's 'dark site' far away from city lights. Photo by Robert Jordan/Ole Miss Communications
This projector is made of casette player and walkman parts, some mirors and cheap chinese laser pointer. Everything is positioned freehand and glued in place with hotglue. This is work in progress. Still comming, separate speed and direction regulation for both motors, and sound to laser modulation.
Curiosity loves the laser pointer. . . that's a good thing. It makes it relatively easy to burn off some of that excess energy!
[SOOC, f/1.4, ISO 1600, shutter speed 1/500, +2 EV]
Great Airsoft Store in South Asheville off of 25Airsoft Carolina
Their prices are very competitive and their staff/owners are extremely nice. From what I have seen their prices may be a little higher than online, but once you factor shipping they are the same or cheaper. Also it's worth a few more $ to hold the gun first.
The store is clean and dedicated to airsoft. This is not some surplus store that sells springers, they sell high quality guns like CA, TM, KWA, and many others. They do also sell cheaper guns like Echo1, sport lines, and UTG
Hope you drop by and see them,
The Gloom
Setup line array test system.
New DIY lens adaptor for the line array TSL202R module. I found an old Schneider 105/3.5 lens with broken shutter. I have removed the front and back lens part and put a new adaptor between the 2 lens parts. Both lens have an thread of 29.5x0.5mm, so I have to make the inside thread on the lathe, a precise task! At the end I have made a Nikon F-mount to put the hole lens on my standaard Nikon interface.
To control the correct focus, the adaptor can shift 50 mm in and out the F-mount adaptor. This works nice for the min and max work distance of the Nikon cameras. The lens has a F 3.5 and the signals on the TSL202R array are nice.
For the results of the tests see:
www.flickr.com/photos/fotoopa_hs/7703776144/
Now a green 10 mW laserpointer is used instead of the red 1 mW pointer. The integration time here is 71.3 us. If need I can use a shorter time as long as the ambient light is not to high, there is no problem. The green laser gives much more output despite he is not optimal in the pass band from the TSL202R line array sensor.
Test results:
Depth resolution 1 pixel array shift = 0.416mm object change in depth at 600mm distance ( D300 camera sensor distance). D300 Camera frame = 82 mm.
DOF at 600mm, Macro lens AF105/2.8D, F18 = 19.4 mm = 46 array pixels
The TSL202R line array is 128 pixels. This means that any signal from -23 to +23 pixels from the centre may give detection, or in focus pictures. A very nice range for detection.
This means also, I can readout the other pixels at a higher data rate as I do no make the ADC convertion (take most time) due to the fact that they are out focus. Just in case of focus detection no speed or direction. ( The max speed is only need if the ambient light is very high so the line array readout a to high level from direct sunlight. I have to test this level next days but just now at 71 us integration time the level seens to be very low.
This primair algorithme is very easy to implement as first test. just look if any readout into the DOF range zone to trigger the cameras.
Frame.............. Distance object ...... Distance line sensor.
125mm ----------------- 650 mm..............68 mm
80 mm ------------------ 520 mm..............70 mm
70 mm ------------------ 445 mm .............73 mm
60 mm ------------------ 390 mm..............77 mm
50 mm ------------------ 315 mm..............81 mm
40 mm ------------------ 260 mm..............84 mm
30 mm ------------------ 205 mm..............91 mm
20 mm ------------------ 153 mm............105mm
15 mm ------------------ 130 mm............120 mm
14 mm ------------------ 125 mm............124 mm
The distance to the line sensor is with only 1 part of the linhof 105mm lens. The frontside part is removed to optimalize the workings distance.
There is a new linsensor inuse now:
www.flickr.com/photos/fotoopa_hs/8145513852/
www.flickr.com/photos/fotoopa_hs/8147506070/
www.flickr.com/photos/fotoopa_hs/8145513146/
The new controller boards are here:
Clint took pictures of the laser pointer with different exposure times.
laser pointer.
orb.
long exposure.
downstairs, Clint and Carolyn's house, Alexandria, Virginia.
April 6, 2007.
... Read my blog at http://ClintJCL.wordpress.com.
... Read Carolyn's blog at http://CarolynCASL.wordpress.com.
My sister gave the cats a laser pointer for Christmas. I have always been nervous about using laser pointers for fear I'll get a feline in the eye, but I cannot get over how much Curiosity LOVES that thing. MoMo, too, will chase after the little bright dot. What a blast!
[SOOC, f/1.4, ISO 1600, shutter speed 1/500, +2 EV]
People gaze skywards at the public stargazing session, Milky Way Night, at the Rothney Astrophysical Observatory, operated by the University of Galgary. Roland conducts the laser star tour. This was August 30, 2014. Exposure was 13 - 20 seconds at f/3.2 with the 15mm lens and Canon 6D at ISO 4000.
Tea Cup on Messy Desk
Culver City, Los Angeles County, California 90230
This image of my typically messy desk was shot with the lens wide open at f/1.2. The cup is a souvenir of our trip to Rockport, Massachusetts in 2011.
camera: Nikon F4 SLR
lens: Nikkor-S·C 55mm F/1.2
film: Kodak TMAX 400 (TMY)
metering: TTL matrix
filter: Sunpak UV
support: hand held
scan: NCPS
software: ACDSee Ultimate 8 (64 bit)
My most popular-interesting photos on Fluidr
My most popular-interesting photos on Flickriver
Find my photos by subject, camera, lens, of film type in my Flickr Collections
©2015 Chris Grossman, all rights reserved
Point of interest, I almost blinded myself with the cheap blue/violet laser pointer used for the lighting effects in this pic. Good times.
Here are the tools for the Turtle Shooting. Please see the notes in the picture.
It's actually taken with my cell phone so it's a lousy quality but should only give you an imagination about the setup and uses accessories.
Setup for this picture: flickr.com/photos/lumi3005/3455198400/
But, sir, that's not an asteroid, it's just a beat up magnifying glass!
Tenuous link: Looks like a flaming meteor.
This 3D-printable stand uses a ball-joint principle to hold most commonly available flashlights, laser pointers, USB microscopes, etc.
To assemble the stand you only need two rubber bands.
The 3D-files are designed to be 3D-printed easily without support structures.
Note that the base has small screw holes on the bottom where rubber feet or ring magnets can be attached.
By rotating the ball-joint and sliding the base on a tabletop, most desirable angles can be achieve for casting light on workpiece.
DOWNLOAD THE 3D FILES
- www.thingiverse.com/thing:1017689
- pinshape.com/items/9964-3d-printed-universal-3d-printable...
- youmagine.com/designs/universal-3d-printable-flashlight-s...
Lasershot's bio-mask is specially modified to work with his cybernetic implants, and rather than a traditional set of wristblades, he has a full metal claw - his hand is actually curled into a fist beneath his left glove!
Yes, yes, I lost the harpoon that goes with his launcher.
Featured on Life In Plastic: nerditis.com/2013/03/08/life-in-plastic-other-kenner-pred...
Tigger loves to attack the laser pointer light. We use it as a way to give her exercise to help reduce her weight (which is probably most accurately described as "over"). Tigger knows exactly what the laser pointer sounds like because as soon as we move it even a little bit on the table, she perks up and waits for us to zap the light all over the house, with her running after it. She's a ferocious hunter of laser light!
This 3D-printable stand uses a ball-joint principle to hold most commonly available flashlights, laser pointers, USB microscopes, etc.
To assemble the stand you only need two rubber bands.
The 3D-files are designed to be 3D-printed easily without support structures.
Note that the base has small screw holes on the bottom where rubber feet or ring magnets can be attached.
By rotating the ball-joint and sliding the base on a tabletop, most desirable angles can be achieve for casting light on workpiece.
DOWNLOAD THE 3D FILES
- www.thingiverse.com/thing:1017689
- pinshape.com/items/9964-3d-printed-universal-3d-printable...
- youmagine.com/designs/universal-3d-printable-flashlight-s...