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You are here: Home / The Last Word / Focus peaking on the a7S

Focus peaking on the a7S

July 8, 2014 JimK 2 Comments

Although I’ve never liked it when the camera’s on a tripod, focus peaking has great potential with the camera handheld. That’s because it offers the chance to focus without zooming in and losing the context of he whole image, a. Also, if it’s sensitive enough, you should be able to focus at the taking aperture, speeding things along a lot. However, with the Zeiss 35mm f/2 Biogon on the a7S, that promise goes pretty much unfulfilled.

The first reason is that, even when you turn it down to minimum, the peaking effect is too strong, filling practically the whole screen with red lines if the focus is in the same county as what’s correct. Sony could fix that at the risk of making peaking too weak for flat scenes with long lenses, but I have a better idea.

When a non-AF lens that doesn’t allow the camera body to control the aperture is mounted, that dial currently becomes useless; you can turn it all you want and nothing will happen. Why not reprogram the firmware so that, under those conditions, that knob controls the sensitivity of focus peaking in, say, 20 steps. You could twiddle it until you find just the right setting for the lens you’re using the the scene you’re photographing.

Sony, take this idea and run with it. I want no compensation or credit should you decide to use it.

The Last Word

← Zeiss 35mm f/2 Biogon ZM on the a7S Is the a7S ISOless? →

Comments

  1. alan says

    August 19, 2014 at 12:40 pm

    The sharpness setting on the picture profile affects the peaking sensitivity also. I find that medium or low (depending on the situation) peaking works well when I use Neutral with sharpness dialed down to -3.

    Reply
    • Jim says

      August 19, 2014 at 12:47 pm

      Good point, Alan.

      Jim

      Reply

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