Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
Thread started 25 Jan 2004 (Sunday) 21:43
Search threadPrev/next
sponsored links (only for non-logged)

Correcting for sodium lights

 
deztoys
Member
102 posts
Joined Mar 2003
     
Jan 25, 2004 21:43 |  #1

I was out playing with the 10D at the local pier (Newport Beach) and was trying to correct the color balance for the sodium lights (I think they are soium, bright yellow/brown). Bot none of the presets seemed to make a difference. Has anyone solved this challenge? Does one of the presets normally sove this or do I need to use the manual temp setting to make a difference.

Thanks.




  
  LOG IN TO REPLY
Tom ­ W
Canon Fanosapien
Avatar
12,749 posts
Likes: 30
Joined Feb 2003
Location: Chattanooga, Tennessee
     
Jan 25, 2004 21:55 |  #2

According to one internet source, sodium lighting color temperature is around 2100 degrees. That's most likely a temperature you'll have to dial in manually.


Tom
5D IV, M5, RP, & various lenses

  
  LOG IN TO REPLY
TeraGram93013
Member
139 posts
Joined Jan 2004
     
Jan 25, 2004 22:14 |  #3

According to this PG&E pdf document (external link) High Pressure Sodium Lamps run from 1900 - 2800 K.




  
  LOG IN TO REPLY
robertwgross
Cream of the Crop
Avatar
9,462 posts
Likes: 3
Joined Nov 2002
Location: California
     
Jan 26, 2004 01:33 |  #4

Just do a custom white balance and be done with it.

---Bob Gross---




  
  LOG IN TO REPLY
EXA1a
Member
242 posts
Joined Oct 2003
     
Jan 26, 2004 07:56 |  #5

deztoys wrote:
I was out playing with the 10D at the local pier (Newport Beach) and was trying to correct the color balance for the sodium lights (I think they are soium, bright yellow/brown). Bot none of the presets seemed to make a difference. Has anyone solved this challenge? Does one of the presets normally sove this or do I need to use the manual temp setting to make a difference.

Thanks.

Sodium light is monochromic yellow light (wavelength = 589nm). As such, there is no "color balance" possible. The only thing you could do is to shift the visible yellow to white. Theoretically you would then get a B&W picture, without any colors visible. Objects which absorb yellow light appear dark, and objects reflecting yellow light appear light. Don't expect any blue, green or red color. In the case of a pure sodium lamp you could easier convert to B&W without losing any color information.
In real life, you don't find exclusive sodium light. It's normally mixed with some tungston and/or mercury light. If you now adjust sodium yellow to white, these other light sources will appear extremely blueish.
I'd recommend to shoot RAW and play with color until it looks good. As I said, there is no true compensation possible. That's a matter of physics and it's not camera-dependent!

--Jens--




  
  LOG IN TO REPLY
Phil ­ Hall
Member
178 posts
Joined May 2002
     
Jan 26, 2004 17:04 |  #6

A lot of arenas have sodiom lights. On the ID you can set to sodium, otherwise set the temperature to around 2000 degrees. It makes a lot of difference to the picture.


Phil Hall
Santa Ynez CA
1D;1Ds;1D MkII;16-35:28-135:70-200;100-400;600;550EX;580EX

  
  LOG IN TO REPLY
Tom ­ W
Canon Fanosapien
Avatar
12,749 posts
Likes: 30
Joined Feb 2003
Location: Chattanooga, Tennessee
     
Jan 26, 2004 17:21 |  #7

Here's a link at photo.net that gives some interesting information on different types of sodium lighting.

http://www.photo.net …a-fetch-msg?msg_id=000jfn (external link)

There are apparently a couple of different types of sodium lighting, one of which is very monochromatic (as Jens mentions) and the other which has at least some spectrum to it.

Give the discussion a quick read.


Tom
5D IV, M5, RP, & various lenses

  
  LOG IN TO REPLY
Jim_T
Goldmember
Avatar
3,312 posts
Likes: 115
Joined Nov 2003
Location: Woodlands, MB, Canada
     
Jan 26, 2004 18:05 |  #8

I posted in one of the other threads here that I don't shoot RAW all the time... Despite that, I *do* us RAW exclusively when shooting under sodium lamps..

I use the file viewer utility and use the "pick white point" eyedropper in the white balance option. By sampling regions that should be white, you can get your images looking pretty good.. Better yet if you can get a grey card in your shot. Of course, the colors will never be 'right'.. But you can lose that sickly orange caste...




  
  LOG IN TO REPLY
sponsored links (only for non-logged)

2,606 views & 0 likes for this thread, 7 members have posted to it.
Correcting for sodium lights
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Forums   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset   •  Home

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is AlainPre
1750 guests, 142 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.