Exercise 2.11 – Split Contrast

Brief: Split contrast is another darkroom technique that’s much easier to achieve in the digital domain. Use it to add drama to your pictures or to correct problems in exposure, for example an over-exposed sky over a correctly exposed landscape. You’ll need a good image editing program like Photoshop to do advanced work like this because it involves using layers. Choose a photo to work on that has a bright sky like the image below. Make the photo black and white, as this emphasises the tonal differences in the image. If you use a Black & White Adjustment Layer, you can delete it later to return the image to colour. Add a Curves Adjustment Layer and increase the contrast, making the dark tones darker and the highlights brighter – as you learned in Part One. Rename this Layer ‘High Contrast’. Select the Layer Mask and use the Brush tool to paint black paint (black subtracts your change in contrast from the image). You can also lower the opacity of the brush to paint shades of grey that will let some of the contrast through the mask. Add another Curves Adjustment Layer and make the image darker. Also change the Blending Mode of the layer to Multiply. Select the Layer Mask and paint black paint everywhere you want to not be affected by this darkening layer. In the image opposite, it’s almost all the image but the sky and the figure. Note here that the area on the horizon has not been affected by the increases of contrast or darkening. In other words, the picture retains its contrast in some parts but it’s increased in others. You could use this to make one part of the image high contrast and the other low contrast. This could help with a photograph that includes, for example, both an interior scene lit by diffused artificial light as well as an exterior lit by strong sunlight. The Dodging & Burning Layer (this is a non-destructive way to dodge and burn): Create a new layer, then choose Edit> Fill> and choose 50% Grey. Change the layer blending mode to Overlay. Change the brush opacity to 20% or less. Now use both black and white paint on this layer to dodge and burn, brighten and darken the image. If you want, delete the Black & White adjustment layer to return the photo to colour. You can only master techniques like these through practice; use some of your old photographs as practice material.

 

OK – To be honest I find this whole process easy and more intuitive by using Lightroom. It’s quite straight forward – grad filter, adjustment brush and global adjustments. A simple process. Simple I say. However, I would like to learn the Photoshop technique so I will practice that on a photo later.

Here are my light room results. The first photo is the original and the second is the developed.

2 Replies to “Exercise 2.11 – Split Contrast”

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