Tested lens, got funky stripes in sky...

I tested the Nikon 12-24mm f/4G IF-ED AF-S DX Zoom-Nikkor on my d200.
No filter at all. Got some stripes in the sky and don't know what it
is. Can someone tell what it is? It's a large file...the only way to
show everything.

located at: http://www.flickr.com/photos/newmetro/

Thanks

On Wed, 01 Feb 2006 20:27:47 -0500, rafe b rafebATspeakeasy.net
wrote:


I downloaded this image (2896 x 1944) and looked at
it in Photoshop at 100%. Try as I may, don't see
any stripes in the sky.

If I look hard enough at it, or screw around with
Curves/Levels, I can see JPG artifacts, but that's
not at all surprising, as you're using fairly
heavy JPG compression (~6:1 relative to the TIF.)

Are you sure it's not your monitor? If you move
the image around on the screen, do the stripes
follow the image?


rafe b
www.terrapinphoto.com


Thanks for the reply. Yes, the stipes move as the image moves. I am
looking on an oler monitor, but other pictures look fine. Where does
it show the compression ratio? When you say 'heavy' is that good or
bad? Should I change it, and to what? Thanks.

On Thu, 02 Feb 2006 00:40:18 GMT, baker1
wrote:

I tested the Nikon 12-24mm f/4G IF-ED AF-S DX Zoom-Nikkor on my d200.
No filter at all. Got some stripes in the sky and don't know what it
is. Can someone tell what it is? It's a large file...the only way to
show everything.

located at: http://www.flickr.com/photos/newmetro/


I downloaded this image (2896 x 1944) and looked at
it in Photoshop at 100%. Try as I may, don't see
any stripes in the sky.

If I look hard enough at it, or screw around with
Curves/Levels, I can see JPG artifacts, but that's
not at all surprising, as you're using fairly
heavy JPG compression (~6:1 relative to the TIF.)

Are you sure it's not your monitor? If you move
the image around on the screen, do the stripes
follow the image?


rafe b
www.terrapinphoto.com

On Wed, 01 Feb 2006 20:27:47 -0500, rafe b rafebATspeakeasy.net
wrote:
I downloaded this image (2896 x 1944) and looked at
it in Photoshop at 100%. Try as I may, don't see
any stripes in the sky.

If I look hard enough at it, or screw around with
Curves/Levels, I can see JPG artifacts, but that's
not at all surprising, as you're using fairly
heavy JPG compression (~6:1 relative to the TIF.)

Are you sure it's not your monitor? If you move
the image around on the screen, do the stripes
follow the image?


rafe b
www.terrapinphoto.com


Well I'll be an SOB!!! It does look OK on my wifes monitor. SOrry to
have bothered everyone...at least I learned something today.

GAry

Still wojld like to know about that compression thing.

"baker1" wrote in message
...
I tested the Nikon 12-24mm f/4G IF-ED AF-S DX Zoom-Nikkor on my d200.
No filter at all. Got some stripes in the sky and don't know what it
is. Can someone tell what it is? It's a large file...the only way to
show everything.

located at: http://www.flickr.com/photos/newmetro/

Thanks

I think that you're in over your head relative to your equipment.

On Thu, 02 Feb 2006 01:32:41 GMT, "J Bowen" wrote:


"baker1" wrote in message
.. .




I think that you're in over your head relative to your equipment.


Now there's some encouraging words...thanks.

"baker1" wrote in message
...
Well I'll be an SOB!!! It does look OK on my wifes monitor. SOrry
to
have bothered everyone...at least I learned something today.

Sounds like the original problem may be posterization or banding ...
you may have too low a color depth set in the video card's properties.
http://desktoppub.about.com/cs/graph...terization.htm

It's what happens when people get too emotionally invested in
equipment.
It's sad, really.

"Rich" wrote in message
oups.com...
It's what happens when people get too emotionally invested in
equipment.
It's sad, really.

You mean I shouldn't be sleeping with my lenses?!! Darn! I'm gonna need
therapy.

"baker1" wrote:
I tested the Nikon 12-24mm f/4G IF-ED AF-S DX Zoom-Nikkor on my d200.
No filter at all. Got some stripes in the sky and don't know what it
is. Can someone tell what it is? It's a large file...the only way to
show everything.

located at: http://www.flickr.com/photos/newmetro/

There are 56 photos there; which one am I supposed to be looking at?

Jon