[Leica] Leica 50mm Apo-Summicron-M & Topaz's AI Gigapixel

[Ken Carney]

Yes, Gigapixel is great for people like me who sometimes don't see the 
image until it is cropped.  A 2x enlargement is plenty for me.  In 
talking with someone from Topaz, they advise using Gigapixel as the last 
step, as you note.  Have you used AI Clear? That seems to be working well.

Ken

On 5/17/2019 1:09 PM, Paul Roark via LUG wrote:
> Yes, with Topaz AI Sharpen I am detecting non-random patterns in the red
> channel in clear blue skies, at least when viewed on my monitor (which I
> trust).
>
> My Sony a7rii images seem to be much cleaner than the Fuji compact's
> images.  I'm guessing there are artifacts in their different OEM RAW file
> formats' compression algorithms that are causing the artifacts.
>
> I have not done any printing with black and white images that utilized the
> red channel that had been processed with the AI Sharpen software.  So, I
> can't comment on the real world impact, but I have seen enough to never use
> this software until just before printing, and then only on a copy file so
> that my original is not damaged.
>
> I have a lot more trust in the Topaz AI Gigapixel 2 times enlarge, which
> has nearly the same sharpening effect without the artifacts I'm seeing with
> AI Sharpen.  But, again, I would not use this until just before printing
> and then saved as a different named file.  (In fact, Topaz automatically
> saves the processed files with a term in the name that identifies the
> process used.)
>
> Paul
> www.PaulRoark.com
>
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