It's neat what you can do with a laser pointer and a camera on bulb in a pitch dark room.
Since there is NOTHING out there right now to sea, I will draw something with a low power DPSS laser. For comparison sakes I'll take video at the same location. Gonna take all night to upload though.
Cheers!
Since there is NOTHING out there right now to sea, I will draw something with a low power DPSS laser. For comparison sakes I'll take video at the same location. Gonna take all night to upload though.
Cheers!
jlee
Lifer
- Sep 12, 2001
- 48,518
- 223
- 106
3sec exposure up in NH..first time trying night/timed stuff (Canon A40..sitting on a car, log, or something -- no tripod)
133-3337_IMG.JPG
133-3337_IMG.JPG
Originally posted by: shilala
Rock steady nerves there, spidey.
I'd have shot 2,000 square miles trying to shoot that freehand.
well, the nice big flat concrete railing helped...steadied cam and only pushed on shutter button with one finger. Close enough to a tripod and remote for me.
:thumbsup:
Ok done playing with lasers. Hey I didn't shoot my eye out!
These are fairly self explanatory.
Born in the USA
Lots of dust down here left over from workers sanding decks. Now I smell varnish. I'll probably have a buzz before the night is over.
ATOT - no explanation necessary!
Look at that power!
Ok some videos taken with my SD20.
First, we have the Jasper laser pointer putting out 7.7 mW. Technically, this would classify it as a 3B device but I don't give a hairy rodent's hindpart.
Jasper
Then we have a more serious beast. This is a class IV device and can light cigars and start fires at a considerable distance. Since I'm surrounded by steel that is no thinner than two inches, this is not a problem. A lick on the arm, however is like getting molten solder from a searing soldering iron dripped on you. It hurts like a bitch. The laser in this video was dialed in at just over 650 mW. (a legalpointer is 5 mW max!)
MG Fiber Coupled DPSS
A few observations:
On the stills, stuck subpixels are clearly visible in the laser pictures. I never notice them in "normal" pictures. Perhaps the monochromatic nature of the laser defeats a noise reduction algorithm in the camera? This would be a damn good test to evaluate the quality of your sensor.
On the videos, there is a a bright vertical line that follows the brightest part of the "dot" where the laser strikes its target. It is noticeable on both units, of course much more on the higher power laser. What actually causes this to happen? Is it a form of saturation? I see it on a lot of videos of bright objects. The Class IV laser is extremely bright. Even on a surface painted with dark blue Awlgrip, it's overwhelming to observe without goggles. Anyone that's a stick welder will tell you how bad it is to look at the arc. Ditto for this. White would be insane. The beam is moving fast enough to not damage the paint. If it's allowed to sit still, the paint will become blistered in a few seconds from the intense heat. This in itself is actually amazing because we're talking about a finish that's as durable as plating. :Q
One thing I will add about lasers and digital photography. NEVER shine the laser into your camera unless you like a lot of "worms" in your pictures. A 5mW probably won't do it, but when you get over 50 and most definitely over 500, it will destroy your imaging device CCD/CMOS/TTL or (heaven forbid!) vidicon/newvicon tubes so watch it! Most importantly, protect your EYES! You only get one set of them and you cannot order another set from newegg. (well at least not now!)
Cheers!
Hey I didn't shoot my eye out!These are fairly self explanatory.
Born in the USA
Lots of dust down here left over from workers sanding decks. Now I smell varnish. I'll probably have a buzz before the night is over.
ATOT - no explanation necessary!
Look at that power!
Ok some videos taken with my SD20.
First, we have the Jasper laser pointer putting out 7.7 mW. Technically, this would classify it as a 3B device but I don't give a hairy rodent's hindpart.
Jasper
Then we have a more serious beast. This is a class IV device and can light cigars and start fires at a considerable distance. Since I'm surrounded by steel that is no thinner than two inches, this is not a problem. A lick on the arm, however is like getting molten solder from a searing soldering iron dripped on you. It hurts like a bitch. The laser in this video was dialed in at just over 650 mW. (a legalpointer is 5 mW max!)
MG Fiber Coupled DPSS
A few observations:
On the stills, stuck subpixels are clearly visible in the laser pictures. I never notice them in "normal" pictures. Perhaps the monochromatic nature of the laser defeats a noise reduction algorithm in the camera? This would be a damn good test to evaluate the quality of your sensor.
On the videos, there is a a bright vertical line that follows the brightest part of the "dot" where the laser strikes its target. It is noticeable on both units, of course much more on the higher power laser. What actually causes this to happen? Is it a form of saturation? I see it on a lot of videos of bright objects. The Class IV laser is extremely bright. Even on a surface painted with dark blue Awlgrip, it's overwhelming to observe without goggles. Anyone that's a stick welder will tell you how bad it is to look at the arc. Ditto for this. White would be insane. The beam is moving fast enough to not damage the paint. If it's allowed to sit still, the paint will become blistered in a few seconds from the intense heat. This in itself is actually amazing because we're talking about a finish that's as durable as plating. :Q
One thing I will add about lasers and digital photography. NEVER shine the laser into your camera unless you like a lot of "worms" in your pictures. A 5mW probably won't do it, but when you get over 50 and most definitely over 500, it will destroy your imaging device CCD/CMOS/TTL or (heaven forbid!) vidicon/newvicon tubes so watch it! Most importantly, protect your EYES! You only get one set of them and you cannot order another set from newegg. (well at least not now!)
Cheers!
shilala
Lifer
- Oct 5, 2004
- 11,437
- 1
- 76
Originally posted by: spidey07
Originally posted by: shilala
Rock steady nerves there, spidey.
I'd have shot 2,000 square miles trying to shoot that freehand.
well, the nice big flat concrete railing helped...steadied cam and only pushed on shutter button with one finger. Close enough to a tripod and remote for me.
:thumbsup:
Someone told me along the way to try tying a string to my camera and hold it down with my foot. By applying steady upward pressure I could avoid shaking.
I took an hour's worth of telephoto shots that looked like I had Parkinson's.
I really have to have a tripod or I'm SOL.
Triumph
Lifer
- Oct 9, 1999
- 15,031
- 14
- 81
I'm disappointed that my A85 can't take pictures to compete anywhere near what the rest of you guys are posting. I guess I didn't know what to expect, this being my first foray into digital cameras. What's the bare minimum needed to get these kinds of pictures?
virtuamike
Diamond Member
- Oct 13, 2000
- 7,845
- 13
- 81
virtuamike
Diamond Member
- Oct 13, 2000
- 7,845
- 13
- 81
Originally posted by: shilala
Originally posted by: spidey07
Originally posted by: shilala
Rock steady nerves there, spidey.
I'd have shot 2,000 square miles trying to shoot that freehand.
well, the nice big flat concrete railing helped...steadied cam and only pushed on shutter button with one finger. Close enough to a tripod and remote for me.
:thumbsup:
Someone told me along the way to try tying a string to my camera and hold it down with my foot. By applying steady upward pressure I could avoid shaking.
I took an hour's worth of telephoto shots that looked like I had Parkinson's.
I really have to have a tripod or I'm SOL.
Get a beanbag, rest it on something, and apply pressure down.
dartworth
Lifer
- Jul 29, 2001
- 15,200
- 10
- 81
HardcoreRobot
Lifer
- Nov 7, 2000
- 16,403
- 3
- 81
not very slow shutter, nor a tripod, but i think its got cool content
http://pics.bbzzdd.com/users/HardcoreRobot/119_1914.JPG
these last two were taken by mcrusty with my camera
http://pics.bbzzdd.com/users/HardcoreRobot/111_1124.JPG
http://pics.bbzzdd.com/users/HardcoreRobot/111_1122.JPG
http://pics.bbzzdd.com/users/HardcoreRobot/119_1914.JPG
these last two were taken by mcrusty with my camera
http://pics.bbzzdd.com/users/HardcoreRobot/111_1124.JPG
http://pics.bbzzdd.com/users/HardcoreRobot/111_1122.JPG
Wow what a change!
We're at Nassau and the wind has whipped up to a full gale.
You would never know it looking from the starboard side. Wonder with Fantasy in the background in case you're wondering.
Heading over to port, just on the other side of that jetty is the Atlantic. It's pretty furious with the wind blowing a good force eight. The waves are crashing and going completely over the houses! Nice!
Wind speed showing 44 mph sustained on the anemometer!
It was VERY HARD to take the pictures. The exposures were long and with the wind it was impossible to keep still.
Tonight we'll be making headway straight into the wind! Ship speed = 24 mph + wind speed = 45 mph = realised wind speed of 69 mph, gusts will be hurricane force (74 mph) easily. Some rope + parachute would make for some nice fun. Too bad I have to work!
Cheers!
We're at Nassau and the wind has whipped up to a full gale.
You would never know it looking from the starboard side. Wonder with Fantasy in the background in case you're wondering.
Heading over to port, just on the other side of that jetty is the Atlantic. It's pretty furious with the wind blowing a good force eight. The waves are crashing and going completely over the houses! Nice!
Wind speed showing 44 mph sustained on the anemometer!
It was VERY HARD to take the pictures. The exposures were long and with the wind it was impossible to keep still.
Tonight we'll be making headway straight into the wind!
Ship speed = 24 mph + wind speed = 45 mph = realised wind speed of 69 mph, gusts will be hurricane force (74 mph) easily. Some rope + parachute would make for some nice fun. Too bad I have to work! Cheers!
Canon G5:
Cherai Beach
Lagoon at Night
Cochin harbor
Older pics (Dads):
Ceylon Frogmouth: Top Slip 1994
Saw-scale Viper: Top Slip 1994
Fort Cochin beach
The Alamo
Everything except the last one (obviously) is in India.
Cherai Beach
Lagoon at Night
Cochin harbor
Older pics (Dads):
Ceylon Frogmouth: Top Slip 1994
Saw-scale Viper: Top Slip 1994
Fort Cochin beach
The Alamo
Everything except the last one (obviously) is in India.
VERY nice.
iamwiz82: That varies greatly depending on what position you hold and the 'line, time of year, etc. Also do realise that the internet is a pipe dream on most ships unless you have a lot of disposable cache, know people or have connections.
I'm looking forward to FLL because I can hit a hotspot that's on a Ethernet handout from a T3! 4500 up and down! (saturates the 802.11b bandwidth!) I'll upload a ton of stuff and then it's time to go again.
Cheers!
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