Zerene Stacker

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
stacker:docs:tutorials:tutorial002 [2012/10/04 20:09]
rjlittlefield
stacker:docs:tutorials:tutorial002 [2012/10/04 20:53] (current)
rjlittlefield
Line 49: Line 49:
 {{:​stacker:​docs:​tutorials:​tutorial002:​image006.jpg}} {{:​stacker:​docs:​tutorials:​tutorial002:​image007.jpg}} \\ {{:​stacker:​docs:​tutorials:​tutorial002:​image006.jpg}} {{:​stacker:​docs:​tutorials:​tutorial002:​image007.jpg}} \\
 Figure 5. Front and rear frames from focusing by moving the camera Figure 5. Front and rear frames from focusing by moving the camera
- 
-Using this method of focusing, there will be changes in magnification and perspective with all lenses. 
  
 When we process this second stack, we get the following result: When we process this second stack, we get the following result:
Line 56: Line 54:
 {{:​stacker:​docs:​tutorials:​tutorial002:​image008.jpg}} \\ {{:​stacker:​docs:​tutorials:​tutorial002:​image008.jpg}} \\
 **Figure 6.  Output image from method #2** **Figure 6.  Output image from method #2**
 +
 +When focusing by rail, there will be changes in magnification and perspective with all lenses. ​ Changes in magnification can be completely corrected by Zerene Stacker, but changes in perspective result in apparent movement that may give artifacts in the result. ​ See [[:​stacker:​docs:​troubleshooting:​ringversusrail|HERE]] for more discussion on this point. ​ For critical work, it's better to focus by ring and to choose a lens model that does not change length as it focuses.
 +
  
 ====== Summary: Use either method but be sure to check framing ====== ====== Summary: Use either method but be sure to check framing ======
stacker/docs/tutorials/tutorial002.txt · Last modified: 2012/10/04 20:53 by rjlittlefield
Copyright 2009-2020, Zerene Systems LLC, all rights reserved.