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Re: [OM] IMG: A Walk Around the Yard

Subject: Re: [OM] IMG: A Walk Around the Yard
From: Mike Gordon via olympus <olympus@xxxxxxxxxxxxxxxxx>
Date: Mon, 8 Mar 2021 23:38:28 +0000 (UTC)
Cc: usher99@xxxxxxx
WayneS writes:

<<These are nice. I particularly like the dew drops. A rare event here in AZ.

<<As for stacking, PS can take hours when artifacts are involved. I spent over 
2+ 
<<hours once on a 10 stack cactus flower shot trying to fix artifacts. It 
<<convinced me to switch to Helicon Focus. Besides having 3 modes of stacking, 
<<there are sliders to tweak the stacking. You can fix a few artifacts with PS 
<<but cactus needles can create many. And if you do a serious stack of 20-30 
<<images, fixing PS artifacts become impossible.

Thanks for the comments Wayne.  I usually do more complex stacking with Zerene 
Stacker   (ZS) on tiff files.   More similarities than differences with Helicon 
focus.  The version of ZS I have strips the exif but I put I have to fuss with 
exif anyway with Big Foot so I don't want to pony up the extra dosh for  
Prosumer version.  The stacking results are no different.  Oly auto focus 
bracketing usually works but oddly no auto focus bracket on Sonnie anyways.  CV 
lenses are MF anyway and that is easy enough inside but not with critters. 

Deep stacks do better with their Pmax algorithm vs DMap  in ZS but usually best 
to try both and pick the best features of each.  Often it is faster to clean up 
halos using a Dmap with high contrast threshold  than to use the individual 
frames but both methods work.
When one can see the transition area, can re-stack with the larger "smoothing 
radius" and use that to fix the area or just blend it in in PS. Only some pixel 
peepers really notice that---you know who you are .   ;-)    (You would be 
correct if thinking about our august listee, largest member of the cervidae 
family, Alces americanus.)  It is very imp't to clean up the halo artifacts 
though. 

 It can take longer to PP the images than taking them. 
I miss a few  dings here and there still and usually save the .psd files as 
strike hand on forehead and wonder how the problem was missed in the first 
place. 

Stacker Mike






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