James Cripps , Aug 06, 2007; 10:28 p.m.
I posted on this topic before,(http://photo.net/bboard/q-and-a-fetch-msg?
msg_id=00Kuee) and the conclusion was that it was believed to be an issue that
Adobe was working on resolving in the next version of Lightroom. Well, I am now
using version 1.1 and there is no difference.
Lightroom just cannot process red/orange/amber or blue lights. Green seems to
be ok from what I have encountered. Please see the thread I linked, above.
I will attach 2 100% crops from an image I shot recently. Just a crowd of
people at a festival. The one taken from zoombrowser looks wonderful, while the
lightroom crop looks like crap. Of course I can just use zoombrowser or DPP to
convert, but I have Lightroom for a reason. It's an excellent program in every
way but this! Somebody tell me there is a cure for this.
James Cripps , Aug 06, 2007; 10:29 p.m.
Now the Lightroom 1.1 crop:
James Cripps , Aug 06, 2007; 10:54 p.m.
http://photo.net/bboard/q-and-a-fetch-msg?msg_id=00Kuee
Is how the link should read
Rob Bernhard 
, Aug 07, 2007; 12:10 a.m.
Can you post the ZoomBrowser crop?
Godfrey DiGiorgi 
, Aug 07, 2007; 01:26 a.m.
I'm baffled by what you're attempting to do and understanding what isn't working... What I
see when I look at your clips is a photograph made under a very red light source. No notion
of how much or how little of the full frame they are either. I can't tell whether there was
sufficient exposure.
What is the expected result that you're looking for? How much of the frame do these snippets
represent? How did you meter the scene? What were the exposure settings you used?
Godfrey
James Cripps , Aug 07, 2007; 06:47 a.m.
First of all, the Zoombrowser crop is posted. It was the first attachment I put up.
Secondly, I already said that they are 100% crops.
They were taken on a Digital Rebel XT.
The light source is actually a deep orange.
Metering doesn't matter whatsoever. If you pay attention to what I'm saying it's quite simple. 3rd party software, naimly Adobe photoshop + Camera Raw, and Adobe Lightroom, cannot process red/amber/orange or blue lights. The Zoombrowser crop looks as the image should. I want to know if this is just something wrong with MY software or something. Is there a cure for this, etc. It is 100% definitely a defect of some sort. The image does NOT contain these wild clumps of noise and bright white burn-out spots anywhere a red/orange/amber or blue light is shining. Adobe programs just display it that way.
You must not have read my post, or looked at the other thread I linked to.
I can send the original RAW to someone who uses these programs if they would like to see if it happens for them.
Also, I do not care whatsoever about the composition or photographic merit of the image itself. This problem occurs in every situation involving this type of light! This is simply a good example of it that I have on hand. Thank you.
Sébastien Orban , Aug 07, 2007; 08:12 a.m.
Noise reduction, color...
Your image in Lightroom seem a bit lighter than the Zoombrowser one too. It can explain the noise too.
Lightroom by default apply a 50 brightness and 25 contrast. Can explain this.
Patrick Lavoie 
, Aug 07, 2007; 08:46 a.m.
could you please send me the real untouched RAW and i would see by myself if the problem is Lr or you....it seem very strange that you get that problem, but i have never had a bad ligth situation either so i cant comfirm. i will be please to help detect the problem. feel free to contact me.
Rob Bernhard , Aug 07, 2007; 11:11 a.m.
You have a completely saturated channel due to monochromatic light. I'm not particularly surprised that Canon, who makes the sensor, knows exactly what is going into the RAW file whereas Adobe is on the outside looking in.
Sorry for misreading the name of the attached file.
Roger Smith , Aug 07, 2007; 02:39 p.m.
Provide a link to the RAW file if you want us to look at it. I haven't seen this problem myself (but perhaps wasn't looking for it). You can also email me at photographyat jingai dotcom.
