How did I do that?
Author
Discussion

docevi1

Original Poster:

10,430 posts

268 months

Thursday 16th December 2004
quotequote all
I took some pictures of a sunset over a bridge near where I live and while I like the effect some of the images have taken, I'm lost as to how it has happened. The EXIFO information doesn't help matters either

The full gallery is here but sample images:

Normal:


Green:

simpo two

90,519 posts

285 months

Thursday 16th December 2004
quotequote all
You mean you took the same shot twice and some came out green? That ain't right...

docevi1

Original Poster:

10,430 posts

268 months

Thursday 16th December 2004
quotequote all
no, a series of shots came out like that, but I didn't change the settings on the camera (bar fiddling with the shutter time)

kojak

4,547 posts

273 months

Thursday 16th December 2004
quotequote all
weird. Shouldn't be like that.

2 Smokin Barrels

31,553 posts

255 months

Thursday 16th December 2004
quotequote all
Were you on Jupiter?

Nice pics though.

ThatPhilBrettGuy

11,810 posts

260 months

Thursday 16th December 2004
quotequote all
White balance change maybe?

simpo two

90,519 posts

285 months

Thursday 16th December 2004
quotequote all
Wonder if a colour is missing? How does it compare if you take the normal picture then remove each of RGB one at a time? Just wondering if you have a CCD problem. Try some controlled tests ad see if you can make it happen again.

kojak

4,547 posts

273 months

Thursday 16th December 2004
quotequote all
ThatPhilBrettGuy said:
White balance change maybe?


I'd check that too. It might not be on auto.

docevi1

Original Poster:

10,430 posts

268 months

Friday 17th December 2004
quotequote all
kojak said:
ThatPhilBrettGuy said:
White balance change maybe?
I'd check that too. It might not be on auto.
Doh! I changed it to manual on Tuesday for the gig.

How does it do that then - work on some images but not on others and similary, how does White Balance change the picture to green?

simpo two

90,519 posts

285 months

Friday 17th December 2004
quotequote all
Don't know.
But PS AutoLevels is very good at correcting white balance errors - so if you have PS and try that, and it doesn't look better, I reckon it's something else.

DustyC

12,820 posts

274 months

Friday 17th December 2004
quotequote all
Looks like you have solved it. I was going to ask if you had taken the shots through a window. I have had this happen when taking through a window before.

I know that taking through windows is a no-no but this was in a cable car and I didn't fancy getting out!

ehasler

8,574 posts

303 months

Friday 17th December 2004
quotequote all
DustyC said:
Looks like you have solved it. I was going to ask if you had taken the shots through a window. I have had this happen when taking through a window before.
I think you need to clean your windows!

DustyC

12,820 posts

274 months

Friday 17th December 2004
quotequote all
It was more likely perspex I think.
Did actually work for a good filter effect for the clear sky over mont blanc though.

dcw@pr

3,516 posts

263 months

Friday 17th December 2004
quotequote all
White balance shouldn't turn anything green. That would have to be to correct a magenta light source, and I don't think such a thing exists, at least not with enough frequency to have a white balance setting for it. But maybe the auto setting doesn't work like that?

simpo two

90,519 posts

285 months

Friday 17th December 2004
quotequote all
dcw@pr said:
White balance shouldn't turn anything green. That would have to be to correct a magenta light source, and I don't think such a thing exists, at least not with enough frequency to have a white balance setting for it.

My thoughts exactly. The D70 has a fluorescent setting - but the sample pic looks far too green to be healthy.

dcw@pr

3,516 posts

263 months

Friday 17th December 2004
quotequote all
simpo two said:
My thoughts exactly. The D70 has a fluorescent setting - but the sample pic looks far too green to be healthy.


But the fluorescent setting corrects a green light source, by making the picture more magenta, the opposite to what has happened here. Very odd

docevi1

Original Poster:

10,430 posts

268 months

Friday 17th December 2004
quotequote all
you all have me worried now I figured it was something simple settings wise, not an actual problem.

Here's a dump of the EXIFO info if that helps any:

EXIFO good said:
ShutterSpeedValue - 1/40 seconds
ApertureValue - F 2.80
ExposureMode - Auto
WhiteBalance - Auto
Easy shooting mode - Full Auto
ISO Value - Auto
Exposure mode - Easy shooting
White Balance - Auto
Subject Distance - 116 mm
EXIFO green said:
ShutterSpeedValue - 1/60 seconds
ApertureValue - F 4.51
ExposureMode - Manual
WhiteBalance - Manual
Easy shooting mode - Manual
ISO Value - 400
Exposure mode - Manual
White Balance - Custom
Subject Distance - 98 mm


>> Edited by docevi1 on Friday 17th December 17:30

simpo two

90,519 posts

285 months

Friday 17th December 2004
quotequote all
Compare this info with the good shot and the green shot. What is different, if anything?

docevi1

Original Poster:

10,430 posts

268 months

Friday 17th December 2004
quotequote all
I've updated the previous post doing the obvious thing (seeing the blindly obvious isn't a strong point with me ) and comparing the two

>> Edited by docevi1 on Friday 17th December 17:30

simpo two

90,519 posts

285 months

Friday 17th December 2004
quotequote all
There appear to be 2 x White Balance and 2 x Exposure Mode for each shot???