Go Back   Steve's Digicams Forums > Digital Cameras (Point and Shoot) > Pentax

Reply
 
Thread Tools Search this Thread
Old Jun 12, 2004, 6:28 PM   #1
Junior Member
 
Join Date: Jun 2004
Posts: 4
Default

I take pics at 640x480, ***. Pictures come out great except when I take pictures of the sky. I get lines across the whole pic. Anyone knows what I'm doing wrong?
neneago is offline   Reply With Quote
Sponsored Links
Old Jun 14, 2004, 4:50 AM   #2
Member
 
Join Date: May 2004
Posts: 40
Default

Can you please post a sample picture, it will be easier to understand your problem then?!



Arne
arnelie is offline   Reply With Quote
Old Jun 14, 2004, 8:37 AM   #3
Junior Member
 
Join Date: Jun 2004
Posts: 4
Default

Take a look at the attachment
Attached Images
 
neneago is offline   Reply With Quote
Old Jun 15, 2004, 4:55 AM   #4
Member
 
Join Date: May 2004
Posts: 40
Default

Your sample picture is very odd, indeed! In fact, I have yet to test the camera at this low resolution. Have you taken similar pictures at higher resolutions? Anyway, the pictures should not look like this. You are not doing anything wrong.

The strange thing is that the stripes looks like 50Hz interference on my web-cam! Have you taken this photo in a place where there are powerful power-lines in the air (or in the ground) close by??? If this is so, then the camera is not to blame.

I will do a similar sky photo at low resulution here, although I have not seen a blue sky for some time now, here in Trondheim...

Arne
arnelie is offline   Reply With Quote
Old Jun 15, 2004, 5:32 AM   #5
Junior Member
 
Join Date: Jun 2004
Posts: 4
Default

I live in Japan. I never get the lines unless it's that shade of light blue.
neneago is offline   Reply With Quote
Old Jun 15, 2004, 8:42 AM   #6
Member
 
HappyMac's Avatar
 
Join Date: May 2004
Posts: 57
Default

Hi,

I have the same camera but never seen the phenomenon you show on your picture. Interested as I am, I have tried to find out what this could be. I have found the page http://photos.msn.com/resources/targ...Mistakes_p.htmwhere you find under the heading "6. Eerie patterns emerge" interesting facts on interference of repetitive patterns.

CCD, camera resolution and TFT/CRT resolution work with patterns. I thought that two of them (or all three) could lead to this "moiré" effect.

I suggest you print this picture to find out if you get the stripes on paper also. If so, you might have to increase the camera resolution.

I wonder if it helped.

Regards

Mark




HappyMac is offline   Reply With Quote
Old Jun 15, 2004, 8:53 AM   #7
Junior Member
 
Join Date: Jun 2004
Posts: 4
Default

I'm going to increase the resolution and see what happens. Been a bit cloudy the last couple of days. I'll have to test on a good day.
neneago 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 4:47 AM.