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 10/14/2002 10:40:41 AM · #1
This "Light Source" challenge will be an excellent challenge for experimenting with your white balance settings on your camera.

Normal indoor lighting usually produces a yellow glow on your image rather than the light color that you actually see. Some other forms of lighting like mercury vapor produce a green glow.

Take some time on this challenge to see what different glow effects you get and how you can correct them with white balance, if necessary :)


 10/14/2002 10:48:03 AM · #2
for the info in case it could help ... I got the tip from other people on this site and actually bought yesterday 500W working lamp at home depot (sorry for non US people) and they have a model for 9.99$ that even have a replacement halogen bulb in it.

I bought 2 (and that's barely enought to hit the object after reflections on the wall) .. this challenge is with one unique artificial light source.

Lionel
 10/14/2002 11:25:37 AM · #3
I just love this light source challenge!
 10/14/2002 11:29:00 AM · #4
I would like to know how we get rid of the shadows??
 10/14/2002 11:29:45 AM · #5
Maybe the shadows are there to be used.
 10/14/2002 11:31:11 AM · #6
To get rid of shadows light from the same place your camera is.

In my opinion tho, this week the shadows will be what makes a winning photo.
 10/14/2002 02:10:43 PM · #7
//inbox.mysteriousarts.net/light/

Anyone need a link?
 10/14/2002 02:22:22 PM · #8
if we bounce the light or reflect it....that still counts, right?
 10/14/2002 02:32:01 PM · #9
Originally posted by indigo997:
if we bounce the light or reflect it....that still counts, right?

That is pretty much my question too. If we make use of a single light or strobe, in combination with a reflector, does that count as one light source or two? From my viewpoint, it is just one light source. Comments and clarifications will be most welcome before I go down this road too far and waste time and effort on an image that will not qualify.
 10/14/2002 03:53:51 PM · #10
now it said 'subject' can that be multiple items?
hmmmmmmmmmm
lgk
 10/14/2002 05:31:54 PM · #11
The "subject" of a photograph can certainly be singular (a body, for example) or plural (a crowd, of bodies).
 10/14/2002 05:53:11 PM · #12
I would thing a reflected light source stills counts as only one light source.. it is only one source regardless if it's reflected... right? at least thats how I see the logic of it... I suppose it's for the great photo gods to deside and lets us know?
 10/14/2002 06:10:06 PM · #13
Question : Is fire an artificial light source or a natural one? Is 'artificial' a light source I create and direct? Or is it a light source I plug in?

Still haven't decided what to shot, but thought I'd ask to see the general opinion before I consider that direction.

(I hate when I post before running the spell check :) )

* This message has been edited by the author on 10/14/2002 6:08:53 PM.
 10/14/2002 07:24:27 PM · #14
My interpretation for this challenge is that there should be a single light source that adds to your image. Unless you're in a totally dark room, you wont' be able to hav ethe image containing ONLY one source of light. Let's say you do it at night, well, outside light can still shine through your window. So unless you're in a closet with everything closed off, it will be more than one light source. Thus my interpretation would be that there should be a ONE STRIKINGLY INTERSTING light source that adds to your image.
 10/14/2002 07:25:17 PM · #15
I think anything other than the SUN or MOON is an artifical light source.

Originally posted by myqyl:
Question : Is fire an artificial light source or a natural one? Is 'artificial' a light source I create and direct? Or is it a light source I plug in?

Still haven't decided what to shot, but thought I'd ask to see the general opinion before I consider that direction.

(I hate when I post before running the spell check :)


10/14/2002 09:07:27 PM · #16
Originally posted by myqyl:
Question : Is fire an artificial light source or a natural one? Is 'artificial' a light source I create and direct? Or is it a light source I plug in?

I was wondering this very same thing. I hope the administrators or moderators will clarify this.

 10/14/2002 09:10:42 PM · #17
As far as I can tell all light is going to reflect/bounce off something, unless there is absolutely NOTHING but empty space. Since there are particles of stuff just about everywhere, we can safely assume that as long as we adhere to one light sourcewe can use our creativity to use that source effectively by choosing our reflectors, etc.
Just my opinion, of course.
 10/14/2002 10:23:36 PM · #18
i think that any light source that isnt the sun or the moon is valid here.

i also think that using reflections and reflectors is also totally valid.

:)

10/14/2002 10:43:02 PM · #19
I would say, since it specifies a single light source, you should make sure your light looks directional, and not use reflectors. A reflector could be percieved as a seperate light source.
 10/14/2002 10:49:47 PM · #20
Originally posted by Zeissman:
I would say, since it specifies a single light source, you should make sure your light looks directional, and not use reflectors. A reflector could be percieved as a seperate light source.

I wish this wasn't correct, but sadly it probably is.


 10/14/2002 10:50:05 PM · #21
Originally posted by myqyl:
Question : Is fire an artificial light source or a natural one? Is 'artificial' a light source I create and direct? Or is it a light source I plug in?

Still haven't decided what to shot, but thought I'd ask to see the general opinion before I consider that direction.

(I hate when I post before running the spell check :)

I think that fire could be both a natural and artificial light source... it just depends on what created the fire... if it's a fire created by spontaneous combustion, by or a fire created by nature it self such as the light from a flame flickering in a flow of lava, that would be a natural light source...
 10/14/2002 10:51:06 PM · #22
Originally posted by lionelm:
for the info in case it could help ... I got the tip from other people on this site and actually bought yesterday 500W working lamp at home depot (sorry for non US people) and they have a model for 9.99$ that even have a replacement halogen bulb in it.
Lionel

Thanks, Lionel. I'll be off to Home D tomorrow. That light you bought is it a clip on? I used to have lights that were on some sort of an adjustable tripod stand. Must have bought them at an art supply store and I don't believe they were very expensive.
 10/14/2002 11:03:41 PM · #23
Journey, The one I got are the one you put on the floor. But home depot has as well a pair of working light on a 'tripod' thing ... If you go to the home depot web site and search for 'working light' you would find it for 40$.
After talking to some people and for 'storage convenience' I thought 2 seperate would make it easier to achive some potential specific lightning.
Lionel
 10/14/2002 11:10:48 PM · #24
What I wrote was my opinion of what was valid. I felt qualified to comment, as I was involved with coming up with this challenge.

As always the voter may interpret the challenge in a way that was not originally intended.

Therefore it is always up to the submitter to decide how much of a 'risk' to take with their shot.

Note also that a reflector could be a shiny or specular surface, but it could also be white cloth or white board to make the most of your light.

here's a little 'Using one light' tutorial i did that might be helpful to people : )

light examples


Originally posted by Zeissman:
I would say, since it specifies a single light source, you should make sure your light looks directional, and not use reflectors. A reflector could be percieved as a seperate light source.



* This message has been edited by the author on 10/14/2002 11:10:36 PM.
 10/14/2002 11:27:07 PM · #25
Alright, then since you helped come up with this challenge, than what was the point? Isn't a reflector a tool to replace a light source? How is the viewer supposed to know if it is a single source, if light is coming from multiple directions?

Single source seemed clear to me, but now I wonder. What is the difference between a reflector and a weaker secondary light? How is the viewer supposed to know?
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