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russell2
8th of November 2003 (Sat), 20:28
just got a new 10D :-)

however I have notice some vertical lines running through the image, you can see it just below the chin area clearly ...first pic below is cropped image with lines showing, 2nd image is original uncropped

http://www.sydneyskydivers.com.au/jump_test.jpg

http://www.sydneyskydivers.com.au/jump_orig.jpg

I have got some great photos but then this shows up.

it was a bright day, 12pm 24-85 lens at 32 f3.5 400iso 1/750 camera was set to sports mode.

I have another shot set at ISO 100 (portrait mode) that is fine ...

so is this just the noise that comes in a higher ISO settings .... would not of thought I would get that bad results on sports mode in bright daylight ?


anyone got any ideas ?


thanks

ChrisNardone
8th of November 2003 (Sat), 22:18
That's definitely not normal. My recommendation is try a different memory card. I had one go bad on me, and right before it did, it started putting lines in my imges, although not like yours...
I guess nother thought would be the lens. That's a decent lens, but maybe wide open it isn't so hot?
What file size are you shooting?

KennyG
9th of November 2003 (Sun), 03:28
This is a fairly common problem and it isn't confined to the 10D. Check this thread for more info:

http://forums.dpreview.com/forums/read.asp?forum=1019&message=6077100

There isn't anything wrong with your camera or CF card. It is most common when using a Microdrive.

Derek Smith
9th of November 2003 (Sun), 17:05
Hi Russell2,

Very interesting problem you have there. Not an effect I would like to discover AFTER I had taken my images into PS, and of course, not one that you would be able to see on camera.

I would very much like to find out the explanation for this aberration before it hits me, so could I start by asking for a little clarification on the details.

1. Are you using a Microdrive?
2. You state that the second image is the uncropped original, yet they are obviously different images. Could you post the real original.
3. What format did you use in camera - RAW, jpg etc., and what 'in camera' processing was done?
4. Is this a one off problem, or do you have other examples (different subject matter) which also show the effect?
5. Did you process the image in any way (other than cropping it)?

Your answers may help shed light onto the cause.

Derek

russell2
10th of November 2003 (Mon), 04:41
ooops sorry grabbed wrong original

here are the 2 pics (correct uncropped original this time)

had a look at the original un-changed @ 100% and the lines are very clearly visible. but not on any of the other shots taken from the same shoot sequence.

http://www.sydneyskydivers.com.au/jump_test.jpg

http://www.sydneyskydivers.com.au/orig.jpg

Derek Smith
10th of November 2003 (Mon), 11:35
Thanks for the updated image Russell2,

Any chance of answers to the remaining questions?

Derek

russell2
10th of November 2003 (Mon), 12:38
pic was JPG fine/large from memory the only thing I did after cropping was use photoshop highlights/shadows.

but even with the minimal post processing the original un touches jpg at 100% size clearly shows the lines.

cheers

Derek Smith
11th of November 2003 (Tue), 17:39
Russell2,

I have been in contact with the guy featured in KennyG's link. He also experience banding and everyone was blaming it on the microdrive.

Turns out it was the combination of one particular lense and AI Servo Focus mode. The 'bad' lense worked fine in all other modes and AI worked fine with all of his other lenses.

As Sports mode includes AI Servo, it looks very much as though you have another of these 'sensitive' combinations, particularly in that particular lighting situation.

His advice - use a different lense.

I'm going to check my lenses out to see if they play up in this manner - better to know your systems limits in advance.

russell2
11th of November 2003 (Tue), 17:45
Thanks very much for everyones feedback

At least I can rest a bit easier and its not a camera prob