Beginners help with Zerene. Examples posted.

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DrLazer
Posts: 293
Joined: Wed Feb 16, 2011 4:45 am

Post by DrLazer »

Awesome. Just noticed something Zerene does that is a little strange. You can see it on the far left edge of the caterpillar and on the bottom of one of the spider shots. It kinda looks like a line of pixels is stretched to the edge of the image. Is there a setting I am missing?

Also thanks for all the advice, it's great to find someone so knowledgeable that is willing to share.
Last edited by DrLazer on Mon Mar 21, 2011 4:34 am, edited 1 time in total.

rjlittlefield
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Post by rjlittlefield »

DrLazer wrote:It kinda looks like a line of pixels is stretched to the edge of the image.
That's exactly what's happening. The stretched pixels result from expanding an image that otherwise would not fill the frame, after it was aligned with the frames that got processed before it. This can be caused by getting some sideways shift when the stack was being shot, or by not allowing the software to automatically select the best end of the stack to start with, or both.
Is there a setting I am missing?
Check to be sure that Options > Preferences > Alignment > Automatic order is selected. Default is to have that selected, which causes the software to start at whichever end of the stack is needed to avoid stretched pixels in the common case that there is no shift built into the stack.

If Automatic order is selected, then the problem is that your stack has some sideways shift built into it. For most people, this happens because the camera was mounted a bit twisted on a focusing rail. However, since you're focusing with bellows back movement, a more likely explanation would be that the whole bellows rig twisted a little bit partway through the stack. In either case, there's no recourse but to crop off the streaked region, because your source images do not contain sharp pixels to fill in that region.
Also thanks for all the advice, it's great to find someone so knowledgeable that is willing to share.
You're very welcome. I learn a lot by answering questions.

--Rik

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