Author Topic: lighting recommendation for highspeed cameras  (Read 3041 times)

0 Members and 1 Guest are viewing this topic.

Offline AdminTopic starter

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,663
  • Helpful? 169
    • Society of Robots
lighting recommendation for highspeed cameras
« on: January 28, 2008, 09:23:30 AM »
Here is the deal . . .

I have a giant glass tank filled with water, and my robot fish is in it.

I got two expensive high speed cameras pointed at the fish, 90 degrees to each other.

The problem I am having is poor lighting . . . the cam images are really dark.

I took all the office lights I can find and am pointing it through the glass, even bought 6 underwater fountain lights (3 stopped working for no reason, so lame) . . . but still not enough light!

I spent weeks looking for underwater lights, but apparently 'waterproof' in the marketing biz actually only means 'splash resistant' . . . dangerous, I know . . . so I ended up giving up on this underwater light idea.

So I am thinking of getting a professional studio light or flood lamp, hopefully under $120 . . .

Anyone with recommendations on lighting or where to get a studio light? Google has tons, but looking for anyone experienced with thoughts . . .

Offline Trumpkin

  • Supreme Robot
  • *****
  • Posts: 1,177
  • Helpful? 5
Re: lighting recommendation for highspeed cameras
« Reply #1 on: January 28, 2008, 09:41:47 AM »
I have no idea if this would work but it says it's good for photo studios and it's under $120.  http://www.buy.com/retail/product.asp?sku=203461497&listingid=15996209&dcaid=17902
Robots are awesome!

Offline AdminTopic starter

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,663
  • Helpful? 169
    • Society of Robots
Re: lighting recommendation for highspeed cameras
« Reply #2 on: January 28, 2008, 10:26:35 AM »
Quote
I have no idea if this would work but it says it's good for photo studios and it's under $120.  http://www.buy.com/retail/product.asp?sku=203461497&listingid=15996209&dcaid=17902

I called them up, and they said it didn't come with a bulb or stand.

A very expensive light bulb holder, no? :P

Offline ed1380

  • Supreme Robot
  • *****
  • Posts: 1,478
  • Helpful? 3
Re: lighting recommendation for highspeed cameras
« Reply #3 on: January 28, 2008, 02:53:42 PM »
if the camera's dont come with flash then maybe sync a strobe light with the camera?
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: lighting recommendation for highspeed cameras
« Reply #4 on: January 28, 2008, 03:10:59 PM »
is it possible to put the tank outside on a sunny day?
Howdy

Offline AdminTopic starter

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,663
  • Helpful? 169
    • Society of Robots
Re: lighting recommendation for highspeed cameras
« Reply #5 on: January 28, 2008, 05:18:15 PM »
nm I found two really bright directional lights in the lab, and I just finished filming :D

Quote
maybe sync a strobe light with the camera?
I own a stroboscope that can do really high frequency light flashes, and I considered this option actually, but I have no way of easily synchronizing two cameras and a stroboscope simultaneously.

Quote
is it possible to put the tank outside on a sunny day?
even with no water in it, it requires a crane to lift . . . and it has to be in my lab so I can utilize all the equipment . . . my earlier experiments were done in a small home fish tank, right next to a big sunny window. the problem with windows though is green algae turns my tank green when sunlight is present . . .

Offline HDL_CinC_Dragon

  • Supreme Robot
  • *****
  • Posts: 1,261
  • Helpful? 5
Re: lighting recommendation for highspeed cameras
« Reply #6 on: January 28, 2008, 07:05:56 PM »
the problem with windows though is green algae turns my tank green when sunlight is present . . .
So throw some snails in there :P

Would it be possible to get 2 strobes and have them go off and on at opposing intervals so its basically just a constant crazy bright light?
United States Marine Corps
Infantry
Returns to society: 2014JAN11

Offline ddemarco5

  • Full Member
  • ***
  • Posts: 97
  • Helpful? 0
Re: lighting recommendation for highspeed cameras
« Reply #7 on: January 28, 2008, 08:32:08 PM »
does the tank have a closed top? If not, why not just shine a light at it from the top?

Offline ed1380

  • Supreme Robot
  • *****
  • Posts: 1,478
  • Helpful? 3
Re: lighting recommendation for highspeed cameras
« Reply #8 on: January 28, 2008, 08:55:26 PM »
does the tank have a closed top? If not, why not just shine a light at it from the top?
\/ read \/
Quote
even with no water in it, it requires a crane to lift . . . and it has to be in my lab so I can utilize all the equipment


they should invent a inverted ^ keyboard key
« Last Edit: January 28, 2008, 08:56:01 PM by ed1380 »
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

Offline JonHylands

  • Expert Roboticist
  • Supreme Robot
  • *****
  • Posts: 562
  • Helpful? 3
  • Robot Builder/ Software Developer
Re: lighting recommendation for highspeed cameras
« Reply #9 on: January 28, 2008, 09:05:56 PM »

Offline AdminTopic starter

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,663
  • Helpful? 169
    • Society of Robots
Re: lighting recommendation for highspeed cameras
« Reply #10 on: January 29, 2008, 08:39:13 AM »
hmmm that yahoo groups requires a yahoo account to access it . . .

but anyway no worries, my problem has been solved

Offline ddemarco5

  • Full Member
  • ***
  • Posts: 97
  • Helpful? 0
Re: lighting recommendation for highspeed cameras
« Reply #11 on: January 30, 2008, 07:43:20 PM »
ed, that dosen't mean you can't get a ladder or something.

 


Get Your Ad Here