Sun 30-Sep-12 09:19 PM | edited Sun 30-Sep-12 09:50 PM by briantilley
I've just returned from a trip and been very pleased by my D800 pictures except for 4/900 pictures. These four--all of which are pictures of white or light grey shingled buildings--have noticeable jaggies around the shingles and they are on both the jpeg and nef versions. They disappear on my computer and on my camera LCD screen when I blow them up 3-4 times. But they reappear when I down-size them for internet and for printing. Can anyone help explain this or tell me how to get rid of them? Thanks for any help you can give me.
This is not working. Whenever blow it up to 100% the jaggies disappear. The only way I can suggest is for you to right click on one of the photos in my post, click download, open the downloaded file, and then blow it up further. I know that might be burdensome and time-consuming, so if it is so, thanks anyway for taking the effort to respond to my post.
That probably won't help. If the jaggies appear and disappear at various sizes they just about have to be moire. The D800 is almost as likely to produce moire as the D800E is. The AA filter on the D800 is minimal.
Actually the jaggies showed up on my camera LCD monitor before they were transferred to my computer. So I suspect that it is an aliasing issue. So what can be done with it if it is a function of a weak anti-aliasing filter during post processing, if anything at all, other than avoiding taking photos of white/light grey buildings? What do those with the D800E do?
I wonder if this is a display problem or a processing problem? I saw on diglloyd.com on 13 July the advice to disable the GPU support in CS6 'Graphics Processor settings' I did it and the expected improvement in file display resulted. This cuts out the video card from the processing I believe.
I have searched my pictures taken with a D800E for jaggies as described and just discerable on the posted pictures. I have not found any. Not on white/black pattern fabrics, nor on white whiskers on a black cat against his fur. When zooming in to 300% and above individual pixels are visible, but not false patterns of jaggies. Maybe these are not subjects that would show them and a regular repeating pattern of just the right frequency is required.
It will be interesting to read what others have found.
The jaggies are simply an artifact of viewing size. It is not moire, but has the appearance of moire when an image is "sized" for viewing at less than full resolution.
Your full sized image is more than 7000 pixels wide. Your monitor is just 1000-1700 pixels wide, so the image has to be resized for viewing. The resizing can simply be to fit the screen, but it involves some interpolation of how to convert 7 pixels of the image to one pixel of the screen.
We had this come up in a very early thread when the image was converted from a NEF in Lightroom. In that case the NEF had no moire but there was moire in prints. The solution was to adjust the resampling choice in LR.
Don't worry about it unless the jaggies show up in a print. In most cases the resampling takes care of it.
In the future if you want to show a screen shot, a quick way is to make a screen shot (it's the print screen key in Windows) and past it into a document or email. Then save the image as a JPEG and resize it to fit posting requirements. That could allow you to show the jaggies that disappear with more zooming.