ACR Blacks slider problem?

hi

 

when use "blacks" slider in acr darkest parts of image "block up" , noisy. unlike setting black point or creating shadow clipping levels tool in ps, gives smooth effect, black slider in camera raw seems make shadows crunchy , red pixels around black ones.

 

i use both ps5 , ps6 , on both programs have same "problem". have used acr 6.2, 6.7, 7.0 , 7.2. same effect.

 

up acr 7.0 blacks slider had range of 0-100 default being 5, , 7.0 onward slider can set either plus or minus figure. in either version default value makes shadows pretty awful on screen. question - normal? in every book read says blacks slider can used ruthlessly sett black point if creates pretty blocked result compared levels black slider in ps.

 

i shoot canon eos 5d mk2 , raw files appear have quite noisy shadows when compared out of camera jpegs have silky smooth ones. not sure if part of problem?

you have several issues swirling around...first off, old blacks slider in process version 2003/2010 different process version 2012. yes, blacks moves in earlier process versions tended clamp blacks...that considerably different in new pv 2012.

 

so, want learn how use?

 

the blacks slider of pv 2012 prolly last slider want use in tone controls in basic panel. if use early, not taking optimal approach tone mapping. there plenty of tutorial (adobe tv) learn how use pv 2012 adjustments...if learn how use pv 2012, suspect clamped blacks issue go away.

 

as far noise in shadows, camera jpgs dose of noise reduction in-camera. in acr/lr, luminance noise reduction set 0 (no luminance noise reduction @ all). explain why jpgs seem smoother default rendering in acr/lr. suggest learning how adjust luminance noise reduction in acr/lr optimize noise in raw captures. decent tutorials out there too...

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