agd
Posts: 199
Joined: Tue Aug 31, 2004 11:52 am

Help On Two Colours Rejections

Sun Aug 06, 2006 11:20 am

Hello all,

I recently uploaded a small batch of pics and those two pictures got rejected for some colours problems. Not that I'm complaining, it's only that I don't really see what the problems are nor how to fix them. Being colorblind myself, some color casts effects might escape me as well, so I'd like you guys to point me out what's wrong with the following rejections (and how to fix it!):

http://www.airliners.net/procphotos/...name=20060805_FirstAir732CGCPT.jpg

http://www.airliners.net/procphotos/...ame=20060805_Mexicana752N380RM.jpg

Thank you very much for your kind help and support. It is much appreciated.

Kind regards,

Alex G.-Denicourt
Contrails Aviation Photography

[Edited 2006-08-06 04:20:36]
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WhyWhyZed
Posts: 891
Joined: Sat Jan 08, 2005 12:40 pm

RE: Help On Two Colours Rejections

Sun Aug 06, 2006 11:33 am

Quoting AGD (Thread starter):
http://www.airliners.net/procphotos/...name=20060805_FirstAir732CGCPT.jpg

The first I personally think is fine, but there is a slight yellow/orange cast to it. Thats because of the evening light, obviously.

Quoting AGD (Thread starter):
http://www.airliners.net/procphotos/...ame=20060805_Mexicana752N380RM.jpg

The second, colours are quite off despite it being evening lighting. The orange is too strong, and the red shadow on the top of the aircraft just does it in for the personal collection, IMO.

- Jason DePodesta

P.S - What gear do you use Alex?
 
Interpaul
Posts: 401
Joined: Sun Jul 25, 2004 8:19 pm

RE: Help On Two Colours Rejections

Sun Aug 06, 2006 11:39 am

Here's something to show you the brown/muddy cast on the 757.



Jan
 
agd
Posts: 199
Joined: Tue Aug 31, 2004 11:52 am

RE: Help On Two Colours Rejections

Sun Aug 06, 2006 11:45 am

Jason,

Thanks for the quick reply. The First Air shot was indeed taken in some fine evening light.

I see the cast on the Mexicana pretty well now. It's obvious there's something wrong.

As for my photo gear, I mainly use a 20D with a Canon 100-400 for aviation.

Jan,

Thank you for showing me. As I wrote previously, I should have seen this before. A friend of mine told me the same, but I just wanted to be sure.

Could I ask how to fix that?

Thanks to you both,

Alex
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WhyWhyZed
Posts: 891
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RE: Help On Two Colours Rejections

Sun Aug 06, 2006 12:01 pm

-52 -12 +26

Does quite an improvement, if you're interested in fixing it.

- Jason DePodesta

[Edited 2006-08-06 05:09:13]
 
globalpics
Posts: 205
Joined: Sun Jun 12, 2005 9:49 pm

RE: Help On Two Colours Rejections

Sun Aug 06, 2006 5:13 pm

I can't offer any more advice on top of what the others have said but, mate they are awesome photos, well done specialy the First Air thats a crisp photo,I really hope it make it into the site  Smile
 
agd
Posts: 199
Joined: Tue Aug 31, 2004 11:52 am

RE: Help On Two Colours Rejections

Mon Aug 07, 2006 10:37 am

Quoting Globalpics (Reply 5):
I can't offer any more advice on top of what the others have said but, mate they are awesome photos, well done specialy the First Air thats a crisp photo,I really hope it make it into the site Smile

Thanks for that, I appreciate it.

Anyway, I still have no clue for the First Air shot. Perhaps a screener could tell me what to do, and how to fix this shot? I'd like to see it in the databse.

Thank you.

Alex
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dendrobatid
Posts: 1646
Joined: Sat Nov 06, 2004 3:40 pm

RE: Help On Two Colours Rejections

Mon Aug 07, 2006 7:13 pm

Quoting WhyWhyZed (Reply 4):
-52 -12 +26
Does quite an improvement, if you're interested in fixing it.
- Jason DePodesta

It is neither necessary or even a good idea to use all three colour controls as two are always acting against each other and only two are need to correct any cast. It takes some knack to get used to but the first problem is assessing any cast. Using all three does not help in learning how to correct casts !
By pressing Ctrl+B in Photoshop the colour control sliders come up with options to adjust the levels in the highlights, shadows or mid tones.
Using the Mexicana as an example, this is difficult, not a straightforward image to correct as it is basically a white balance problem.
However, the first thing that hit me was the red/pinkish cast at the top of the fuselage, very unnatural. I ticked highlights and -14, 0, +6 corrected that.
The image was then left with an orangey cast which I corrected in the midtones with -9,0,17
The shadows had taken on a slightly cyan cast which was corrected with +5, 0, 0
You may need to repeat these actions as the controls do have a slight effect on each other and the result here still has a slight cast on the top of the fuselage, though much better.
Mick Bajcar

Big version: Width: 1024 Height: 692 File size: 511kb
 
dendrobatid
Posts: 1646
Joined: Sat Nov 06, 2004 3:40 pm

RE: Help On Two Colours Rejections

Mon Aug 07, 2006 7:20 pm

Sorry, forgot about the top one.
That has a much more subtle cast, but the sky has a cyan cast, (cyan=blue/green) As we are all aware skies are rarely green !
It was dead easy to correct, far easier than the Mexicana at +16, 0,+6
(note the zero on all of my adjustments, only two controls ever being used)
Mick Bajcart
 
agd
Posts: 199
Joined: Tue Aug 31, 2004 11:52 am

RE: Help On Two Colours Rejections

Tue Aug 08, 2006 10:45 am

Hey Mike,

Thanks for the help and tips. I'll keep the Mexicana for my personal collection. If the white balance is the issue, well I guess I'll try to do better next time at the airfield.

I still have no clue for the First Air tho...

Kind regards,

Alex
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NicolasRubio
Posts: 566
Joined: Mon Sep 19, 2005 11:45 am

RE: Help On Two Colours Rejections

Tue Aug 08, 2006 11:07 am

Check this versions... They look ok in my monitor...

http://img85.imageshack.us/img85/3979/20060805firstair732cgcptse3.jpg

http://img88.imageshack.us/img88/9777/20060805mexicana752n380rmcv9.jpg
Gripped 7D + Sigma 10-20mm + 17-40L + 50mm f/1.8 II + 70-200mm f/4L IS + EF 400mm f/5.6L + 580EX II
 
eadster
Posts: 2125
Joined: Tue Jan 25, 2005 7:31 pm

RE: Help On Two Colours Rejections

Tue Aug 08, 2006 1:06 pm

On the latest edits:

The 757 still looks soft in areas. cockpit windows and logo on tail for example. Might just be my monitor here, but it looks very bright and maybe needs toning down a bit?

Same with the 737 - very bright and may need toning down, but not too bad in general. Looks unlevel too. Could just be the runway but for some reason doesn't look quite right.

Just my thoughts.
 
agd
Posts: 199
Joined: Tue Aug 31, 2004 11:52 am

RE: Help On Two Colours Rejections

Tue Aug 08, 2006 1:10 pm

Thank you both. Will have a look.

Cheers,

Alex
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