Go Back   Steve's Digicams Forums > Digicam Help > Newbie Help

Reply
 
Thread Tools Search this Thread
Old Aug 18, 2008, 4:16 AM   #1
Junior Member
 
Join Date: Aug 2008
Posts: 19
Default

Hi,

I have only become interested in photography this summer and in the main I love it. I photograph mainly flowers.

I am struggling with any images from the camera that are yellow. I do not know much about camera and how to use them to be honest :G

Maybe my image will explain all. This was taken last night it was still light but no sun. I am using a camera I love in Olympus D-380



Any other color image seem to be fine, just not yellow.

Thanks for any help.
Attached Images
 
*petal246 is offline   Reply With Quote
Sponsored Links
Old Aug 18, 2008, 7:47 AM   #2
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,544
Default

The RGB histogram from you image shows that it is overexposed:



The histogram for Red shows a little bias toward overexposed:



The histogram for Green shows quite a lot of blown highlights:



The histogram for Blue shows a normal exposure:



The Bayer Filters used in image sensors have twice as many photosensors for green than for red or blue.

If you have made any adjustments to the default exposure settings for your camera, you may have madeadjustments for what you thought were plesant images of red and blue flowers, but those settings are causing the yellow flowers to be overexposed.
TCav is offline   Reply With Quote
Old Aug 18, 2008, 9:15 AM   #3
Junior Member
 
Join Date: Aug 2008
Posts: 19
Default

Quote:
If you have made any adjustments to the default exposure settings for your camera
No tcav, I have not touched anything as far as I know,

I thought it maybe was just using the Flash on it that does that mess or the sun. I do have the manual so maybe I best have a look or try to re-set to man default if I can find it.

Thanks!


*petal246 is offline   Reply With Quote
Old Aug 18, 2008, 11:14 AM   #4
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,544
Default

*petal246 wrote:
Quote:
I thought it maybe was just using the Flash on it that does that mess ...
Perhaps the flash for fill lighting might be ok for red and blue flowers, but maybe it's too much for the yellow ones.

The image you posted didn't have any EXIF data, so I didn't know you'd used the flash. Otherwise, I'd have said something.
TCav is offline   Reply With Quote
Old Aug 18, 2008, 11:31 AM   #5
Junior Member
 
Join Date: Aug 2008
Posts: 19
Default

It must be like you say Tcav,

Its too much for yellow. I have the book and it shows how to dim the Flash yet.

Auto flash fires auto. Thats only logic lol

Redeye reduction shows an eye icon so thats fine too.

Fill in Flash shows like a lightening icon

Apparently you *can turn Flash off, about four presses of the icon on the front of the camera, is that the answer?

I have tried flash/ zoomed in/ zoomed out/ stood near/stood far but still get the same horribilis image. I tried the pot of yellows on the wall/off the wall/stood up to shoot/bent down to shoot..lolol

Maybe update to a newer model with more options though I love this camera due to being fine with any color except yellow....sigh..

Christmas is coming.

:lol::lol:
*petal246 is offline   Reply With Quote
Old Aug 18, 2008, 11:40 AM   #6
Administrator
 
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,378
Default

I'd check your Exposure Compensation and metering settings. Something is causing overexposure (images that are too bright).

Try setting Exposure Compensation to a negative value (which should give you a darker exposure) and see if that solves it. I'd also check your metering options (you can choose from both spot and iESP). One only looks at a small spot, and the other tries to look at the entire image to determine how bright to expose the scene. I'd try both and see what works better for that type of image.

You can find more in your model's review. Here is the page for record options:

http://www.steves-digicams.com/2002_.../d380_pg3.html





The Record Options under the Camera sub-menu are:
  • Exposure Compensation "+" or "-" 2 stops in .5 stop increments [/*]
  • Metering Choose iESP Auto metering or Spot metering [/*]
JimC is offline   Reply With Quote
Old Aug 18, 2008, 12:44 PM   #7
Junior Member
 
Join Date: Aug 2008
Posts: 19
Default

The imformation you have supplied is very helpful.

There is'nt a lot of imformation in this manualI have here which came with the camera just basic instructions.That link is also going to be a great help

Thanks Tcav
*petal246 is offline   Reply With Quote
Old Aug 18, 2008, 12:56 PM   #8
Junior Member
 
Join Date: Aug 2008
Posts: 19
Default

Hey Tcav,

That link was great. Took some moves and a bit of understanding but I found things I never saw before.

Now to play with the camera inbetween taking pics to test.

Thanks




*petal246 is offline   Reply With Quote
Old Aug 18, 2008, 2:50 PM   #9
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,544
Default

*petal246 wrote:
Quote:
Hey Tcav,

That link was great. Took some moves and a bit of understanding but I found things I never saw before.
Actually, that was JimC.
TCav is offline   Reply With Quote
Old Aug 18, 2008, 11:25 PM   #10
Senior Member
 
mtclimber's Avatar
 
Join Date: Oct 2005
Location: Oregon, USA
Posts: 18,143
Default

petal-

However, a bit of minus Exp Comp can sometimes work a bit of magic.

Sarah Joyce
mtclimber is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 8:39 PM.