How do I use Photoshop to do RAW conversion, focus blending, and B&W *all* non-destructively?

how use photoshop create focus-blended image multiple raw files , convert result b&w using silver efex pro in smart filter mode *everything* non-destructively edited?

 

i typically export files lightroom photoshop smart objects. how can export multiple files lightroom photoshop smart objects, focus-blend them in photoshop, , convert resulting focus-blended stack b&w image using silver efex pro in smart filter mode?

 

if isn't possible, workflow give closest approximation of flexibility (being able tweak raw conversion without lot of re-work of later steps) of desired workflow?

 

i'm using osx 10.7.5 on core i5 16gb ram, photoshop cs6, , silver efex pro 2.

 

thanks help!

 

--philip.

not sure motivation is, keep in mind there no true destruction of data if keep original raw files.  sure, stuff pixel data converted them might considered "destructive" (which misleading term dislike), can go raw files , on again.

 

"doing on again" may sound wrong you, assuming describe possible, computer power enough of describe non-destructively , quickly enough acceptable might not have been invented yet.  sounds if you're wanting tweak conversion parameters whole set of images see results.

 

i'm guessing won't possible, because @ least there need "stamp visible" (i.e., step has redone after having changed conversion parameters) able provide pixel-based image nik plug-in.  may seeking workflow requires minimal rework (vs. none @ all).

 

i'll interested hear how plays out.

 

-noel

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