3 Replies Latest reply: Dec 2, 2014 2:00 PM by R Neil Haugen RSS

    S/M Slider

    Petrula Community Member

      SpeedGrade CC 2014.1

      Win7 Pro 64-bit SP1

       

      Both the Shadows and Midtones tabs display a S/M slider.

      In both the slider and editbox modes, the S/M slider does not display a number.

       

      The SpeedGrade CC 2014 PDF help does not discuss the S/M slider.

       

      What does it do? Why does it not display a number?

      Is S/M a threshold setting between the Shadow and Midtone range?

       

      Thanks in advance.

        • 1. Re: S/M Slider
          R Neil Haugen Community Member

          Think of this as a "Pivot" control ... this is how you set the control for the MIDDLE of the effect, where there's as much blending above that point as below. By changing this you are either lowering or raising the mid-point for the relationship of the two tabs listed. Note, when you are on the Shadows tab, you have one slider ... S/M. When you're on the Mids tab, you have two, one at each end ... one is again S/M, the other is M/H, for Mids/Highs. When you're on the Highs tab, you again have one slider ... M/H this time.

           

          I think both lynda-dot-com and Creative Cow have tutorials demonstrating this, and I think there's even an AdobeTV or other tutorial on this also. And it is in the Reference manual for SpeedGrade, page 62. Link to the SpeedGrade Reference Help file is ...

           

          http://helpx.adobe.com/pdf/speedgrade_reference.pdf

           

          Basically, they tried to make it "intuitive" ... if the slider goes up, the effect control of the "lower" control goes higher into the next higher band. Say you "push" up the S/M slider ... now the changeover between the controls goes to a higher or brighter point. Push it down, the midtone control will now affect farther down towards the shadows. Same with the M/H slider.

           

          When setting a secondary, you have a "Pivot" slider, and it is the same ... it sets the "middle" of the area you are affecting with the change. Say you're increasing contrast ... changing the Pivot up or down changes the point that is the middle of the push-out, such that all pixels below or above that point move away from it. In the Shadows/Mids/Highs you set the middle of the ... boundary? ... between each pair.

           

          Neil

          • 2. Re: S/M Slider
            Petrula Community Member

            Thank you for the clarification.

             

            It is unfortunate that SpeedGrade in both the slider and editbox modes does not display a number for S/M and M/H since it has numbers for the other sliders.

             

            The three-way color corrector has a shadow and highlight threshold which is a number so you know exactly where the thresholds occur.

            • 3. Re: S/M Slider
              R Neil Haugen Community Member

              Like you, I'd like numbers on those sliders ... here's the bug/feature request form to ask for 'em. They do read these, and the more they get on an "ish", the higher that ish becomes to the design teams.

               

              https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

               

              Neil