Keith Jewell
Forum Enthusiast
She's in a green field. The shadow side will have a green cast. It's why you use colored reflectors when you're shooting outdoors, to fill it in with a more even color, or at least a more flattering one.
-Keith
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Bad red at iso200
- Thread starter Pavel Sokolov
- Start date
-Keith
jarvic7
Leading Member
Not everyone uses Windows, or Photoshop.
I mainly use Linux and the Gimp. I tried your settings in Gimp, and the red did change, but the upper right part of the background took on a violet cast.
It could be a limitation of my Gimp/Linux combo, but it would be interesting to see what you came up with.
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
I mainly use Linux and the Gimp. I tried your settings in Gimp, and the red did change, but the upper right part of the background took on a violet cast.
It could be a limitation of my Gimp/Linux combo, but it would be interesting to see what you came up with.
--
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
Laurence Matson
Forum Pro
Keith,
It could be, although I fail to see how back lighting and two flashes are going to bring up a green hue from the grass and reflect it on her face.
My point behind my sarcasm, however, is that such issues are ultimately the responsibility of the operator. Even if the camera were to return lousy color, the operator has the tools these days to correct it or take it wherever he or she wants. Blaming the tool just does not work for me.
If Yang likes the shot and is comfortable with the green cast, fine. It is his image and his taste. However, the point of this tread was lousy color (once again).
Had Yang's image been posted here a year ago when the Nican vultures were circling, they would have pixelated the carcas with chirps about the lousy color from the SDxx between gulps.
Laurence
There is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
http://www.pbase.com/lmatson/root
http://www.pbase.com/sigmasd9/root
http://www.pbase.com/cameras/sigma/sd10
http://www.pbase.com/cameras/sigma/sd9
http://www.beachbriss.com (eternal test site)
It could be, although I fail to see how back lighting and two flashes are going to bring up a green hue from the grass and reflect it on her face.
My point behind my sarcasm, however, is that such issues are ultimately the responsibility of the operator. Even if the camera were to return lousy color, the operator has the tools these days to correct it or take it wherever he or she wants. Blaming the tool just does not work for me.
If Yang likes the shot and is comfortable with the green cast, fine. It is his image and his taste. However, the point of this tread was lousy color (once again).
Had Yang's image been posted here a year ago when the Nican vultures were circling, they would have pixelated the carcas with chirps about the lousy color from the SDxx between gulps.
--
Laurence
There is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
http://www.pbase.com/lmatson/root
http://www.pbase.com/sigmasd9/root
http://www.pbase.com/cameras/sigma/sd10
http://www.pbase.com/cameras/sigma/sd9
http://www.beachbriss.com (eternal test site)
Aaro
Senior Member
Some observations on red (apply to other colors too).
First one must have the exposure rigth, on preview I had problem to see the over exp warning as it is also red!!. Best to use histogram, specially when sun is shining so the lcd is difficult to see.
When shooting cars there are many reflections, you decide if you want them or not, and with circular polarizer you can adjust them => adjust the hue.
The circ polarizer is also good with sunshine as it works as grey filter (about 2 stops).
In yout shot I see same things I had with my red car. This shot clearly demonstrates the reflections in brigth daylight.
With overexposed red added with blue sky is close to what is on the lower part of your picture.
I have also noted that the ISO 200 is not so good as the ISO 400 (with SD9). But I have used it very little.
Also to have good prints from printhouses the red channel should be under 240 (max255, depends on the process and brand ofcourse).
Aaro
The man from Snowriver, Mies Lumijoelta
First one must have the exposure rigth, on preview I had problem to see the over exp warning as it is also red!!. Best to use histogram, specially when sun is shining so the lcd is difficult to see.
When shooting cars there are many reflections, you decide if you want them or not, and with circular polarizer you can adjust them => adjust the hue.
The circ polarizer is also good with sunshine as it works as grey filter (about 2 stops).
In yout shot I see same things I had with my red car. This shot clearly demonstrates the reflections in brigth daylight.
With overexposed red added with blue sky is close to what is on the lower part of your picture.
I have also noted that the ISO 200 is not so good as the ISO 400 (with SD9). But I have used it very little.
Also to have good prints from printhouses the red channel should be under 240 (max255, depends on the process and brand ofcourse).
Aaro
--Today I have made some shots at iso200. Generally not bad, but the
white balance is wrong in the most of shots.
And, the main trouble, I have shot an red car - the car is not red
at the shots!
the left image is unedited, the right image edited in the photoshop.
Image -> Adjustments -> Selective color -> Megnetas:
Magneta -50%
Yellow +50%
Anyone has the same effect?
ps. I don't know the effect on the iso100, because does not shot at
iso100 this time.
--
If you found any errors in my english - please let me know.
http://www.pbase.com/crea7or/
http://crea70r.photosight.ru/
The man from Snowriver, Mies Lumijoelta
CJMax
Senior Member
Laurence,
It would follow that green grass would impart a green hue on white mushrooms, perhaps. I just dug up this image that I took a few weeks ago. Unless my monitor is off and/or my eyes, I fail to see any green influence in the color of the mushrooms.
CJ
If this green infiltration is such an issue
--
http://www.pbase.com/cjmax/galleries
You should get the messages out of this thread:
1/Red has problem. Differrent glasses produce different colors (Thanks Cecil, thanks for admitting too, that you care not about colors, just the Foveon look)). Camera Raw Plugin is best to correct color, not SPP (ACR gives you separate R,G,B controls). Use Custom White Balance with Grey Card, only shoot in Ideal light conditions.
Some of these guys will immediately blame on operators' faults, first because they have stock in Sigma Corp and they take personal when people criticise these Foveon Camera, second, they wants to say "You are to blame because you more inexperienced than we are." Dont worry, there are alwyas people who loves to help.
1/Red has problem. Differrent glasses produce different colors (Thanks Cecil, thanks for admitting too, that you care not about colors, just the Foveon look)). Camera Raw Plugin is best to correct color, not SPP (ACR gives you separate R,G,B controls). Use Custom White Balance with Grey Card, only shoot in Ideal light conditions.
Some of these guys will immediately blame on operators' faults, first because they have stock in Sigma Corp and they take personal when people criticise these Foveon Camera, second, they wants to say "You are to blame because you more inexperienced than we are." Dont worry, there are alwyas people who loves to help.
Oops, I meant to write Cynthia, not Cecil.
AdmiralSchnitz
Leading Member
Not quite sure how you would come to the conclusion that I don't care about color. I correct the color on every single picture I take. You must have me mixed up with some one else. By the way, my method which uses a gray card, but does not use 'custom WB', has the advantage that you never have a problem using the gray card, because all you are doing is taking another picture with the gray card in the frame. If the camera let you take the first picture, it will let you take a second equivalent picture with a gray card inserted into the view somewhere.
--
Cynthia, Prescott, AZ
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Cynthia, Prescott, AZ
Laurence Matson
Forum Pro
Don,
As usual you have hit the nail on the head. Of course, once again you have your thumb in between.
Pray tell, dearest Don, how does a camera work in your head? All automatic? Serve me up stuff? Have you ever processed a film image all the way through to the end, including touching up by hand. Nothing auto there. If I make a mistake during that process, I only have myself to blame. Why is digital otherwise?
Answer the questions before lashing out please.
Laurence
There is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
http://www.pbase.com/lmatson/root
http://www.pbase.com/sigmasd9/root
http://www.pbase.com/cameras/sigma/sd10
http://www.pbase.com/cameras/sigma/sd9
http://www.beachbriss.com (eternal test site)
As usual you have hit the nail on the head. Of course, once again you have your thumb in between.
Pray tell, dearest Don, how does a camera work in your head? All automatic? Serve me up stuff? Have you ever processed a film image all the way through to the end, including touching up by hand. Nothing auto there. If I make a mistake during that process, I only have myself to blame. Why is digital otherwise?
Answer the questions before lashing out please.
--
Laurence
There is a tide in the affairs of men,
Which, taken at the flood, leads on to fortune;
Omitted, all the voyage of their life
Is bound in shallows and in miseries.
http://www.pbase.com/lmatson/root
http://www.pbase.com/sigmasd9/root
http://www.pbase.com/cameras/sigma/sd10
http://www.pbase.com/cameras/sigma/sd9
http://www.beachbriss.com (eternal test site)
jarvic7
Leading Member
...personal bashing (duh: you don't know hot to use your camera Mr "point-n-shoot" -- I never do it)
And I especially love those who pull their photo examples -- for what they show. (I was recently chastized for posting, not the origional image but. a B&W color channel of a foveon shot that was posted on this forum due to iso 200 noise problems)
All these issues are very easy to show with, straight-up, image examples.
(not to say that you can't do excellent images with foveon -- I have -- but let's admit to the narrow band that we foveon users need to work within -- and let's be honest about color and low light deficiencies)
i.e. put up or shut up: no one trashes Marcel (and his great work) for not posting full sized images.
Duh?
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
And I especially love those who pull their photo examples -- for what they show. (I was recently chastized for posting, not the origional image but. a B&W color channel of a foveon shot that was posted on this forum due to iso 200 noise problems)
All these issues are very easy to show with, straight-up, image examples.
(not to say that you can't do excellent images with foveon -- I have -- but let's admit to the narrow band that we foveon users need to work within -- and let's be honest about color and low light deficiencies)
i.e. put up or shut up: no one trashes Marcel (and his great work) for not posting full sized images.
Duh?
--
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
jarvic7
Leading Member
...for the second time: why doesn't Pavel (this thread's author) just post his corrected image???
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
--
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
I agree with you, this is the best way to produce a proper custom WB. Most don't do it this way because none of the other cameras' RAW software (Canon/Nikon/Fuji/CS) support that option.
Probably because this thread is about helping him, not you.
CJMax
Senior Member
jarvic7
Leading Member
hundreds of others (since there are hundreds that read these posts, for every one who actually writes)
"a picture speaks a thousand words"
What is the problem?
===
Pav???
You once posted the problem -- why not also post the solution????
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
"a picture speaks a thousand words"
What is the problem?
===
Pav???
You once posted the problem -- why not also post the solution????
--
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
jarvic7
Leading Member
--
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
Pavel Sokolov
Senior Member
Sorry, how I can help you? There only two solutions ( that I found ) the both with photoshop work.
--
If you found any errors in my english - please let me know.
http://www.pbase.com/crea7or/
http://crea70r.photosight.ru/
Pavel Sokolov
Senior Member
Sometimes SPP2 removes the influence, I have seen it before.
But there it can be an very low green power, the sun too low I think...
--
If you found any errors in my english - please let me know.
http://www.pbase.com/crea7or/
http://crea70r.photosight.ru/
jarvic7
Leading Member
--
Peace: Jarvic7
'Blessed are those drowsy ones: for they shall soon nod to sleep'.
http://www.pbase.com/jarvic7
AdmiralSchnitz
Leading Member
Yes, when the sun gets low it starts to produce yellow light. I took a series of shots of my house from different positions. I started when the sun was about 10 or 15 degrees above the horizon. When I color corrected in SPP, each succeeding picture required less and less yellow to be added until finally I was adding green and red to shots taken just before the sun set.
--
Cynthia, Prescott, AZ
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Cynthia, Prescott, AZ
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