Sizing up split toning

Historically, split toning was used when developing photos from negatives. Two different toners would be used one after the other in order to produce different colours in the highlights and shadows of an image. For example, follow selenium with gold and you'll produce purple-blue mid-tones; or use sepia and then blue for sepia highlights, blue shadows, and green mid-tones. The effect could be altered by using different papers, too. While chemical split toning isn't an exact science, it does offer some compelling effects for your photos and can give them an entirely different feel. You can use it to add warmth or to cool down an image; you might want to introduce a blue tint, or an orange cast.

Now, split toning is more likely to be achieved using the dedicated split toning panel in Lightroom, or with a colour balance adjustment layer in Photoshop, and it is far more controllable. If you've not ventured into the split toning panel, the degree of variation that it offers you might be a little overwhelming; it can radically alter your photo in a ways that you might not anticipate. That shouldn't stop you from experimenting, and to get you started, here are some suggestions. And don't forget that if you're working in Lightroom, nothing can't be undone.

A quick introduction

If you're using Lightroom, the split toning panel allows you to select the colours that you would like to emphasise in both the highlights and the shadows, the saturation for each of these tones, and then the balance between them.

If you find using the sliders to control these adjustments a little too abstract, click on the colour swatches beside 'Highlight' and 'Shadow' and use the eyedropper to select the precise colour you'd like for each.

The balance slider places more emphasis on either the highlights or shadows. Once you've selected your highlight and shadow tones, move it about a bit to see which direction, if any, you prefer.

Black and white

The original black and white conversion of Willie's portrait is coming up quite grey-green in tone. By adding some muted browns—that in the shadow very pale—you can introduce a great deal more warmth to the image and bring about an almost-sepia tone.

Adding warmth

This photo was taken fairly early in the morning, on a day when the cloud didn't lift. While the light was wonderfully diffuse, it wasn't especially warm. Even after correcting the white balance, it still felt as if it needed to be brought to life. By adjusting the highlights and shadow tones, it meant I could introduce a more golden-hour feel to the photo.

You don't need to push too far into the oranges or yellows to intensify the warmth in a photo: sticking to browns and beiges might be enough.

Of course, if you wanted to do the opposite and bring about a colder feel to a photo, you would do that by applying more silvery-blue tones, greys, greens, and even some yellows, to the shadows and highlights.

Cross-processed look

Until now, I've used fairly similar highlight and shadow tones in my split toning adjustments. But for a cross-processed effect, you need to select contrasting colours for your highlight and shadow tones: green and magenta, or cyan and yellow, for example. Which you apply will depend on whether you're looking for a warmer or cooler over all effect.

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By adding a graduated filter, upping the contrast and saturation, and reducing the clarity, you can create a fake toy camera look. We've a tutorial for that, in case you'd like to give it a go.

Split tone away!

The best way to get a feel for split toning is to try it for yourself and see what you can achieve using it. Remember: if you don't like it, you can undo it.

Nothing new under the sun? The darkroom techniques we apply digitally

When you tell people that image processing and manipulation isn't anything new, but is just about as old as the art of photography itself, you can get some funny looks. Many of the processes that we carry out without a second thought were equally normal for analogue developers. Depending on how proficient you are with Photoshop, compositing might be faster today, but it's not new. Think of Man Ray and his image Le Violon d'Ingres. And beautifying subjects with the help of a brush was a far from alien practice for Cecil Beaton. Yes, really.

The difference is that now the ubiquity of editing suites means that techniques that were once the preserve of skilled darkroom practitioners are accessible to anyone with a computer. The degree of skill required to complete subtle, effective, and credible edits is still high, but the mystery has gone. Or rather, the mystery has assumed a new narrative as the dark arts of the darkroom remain under wraps.

To try to set some of that record straight, here's an extensive, but not necessarily exhaustive, list of the techniques that bridge the analogue and digital divide.

Crop

Have you noticed how the crop icon is a variation on a theme, in almost every editing package you encounter? That's because it's based on the tool that would be used to crop and resize images in the darkroom.

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Brushes

The brush icon is another familiar one, whether you're in Photoshop or Pixelmator or Aperture or GIMP. Brushes were used extensively in the darkroom, to define edges or enhance details, to hand colour, to spot correct, to complete just about any task for which you might now use a digital brush.

Dodging and burning

Haje has already written an article that explains why the dodge icon resembles a lollipop and the burn one a fist. Of course, they're techniques that were used in the darkroom to lighten or darken specific areas of an image as required. The dodging 'lollipop'—or piece of black paper on a stick—could protect the photographic paper from too much light during the development process, thereby keeping the areas in question lighter in the final image. The fist would be your hand, controlling how much light got through to darken areas of your photos.

Masking

Using red to distinguish masked from unmasked elements in an image wasn't an arbitrary choice by software engineers. That too is a hangover from darkroom days. Mask an area that you don't want developed with red, gel-like rubylith and the light won't be able to penetrate it in the darkroom, so it won't be exposed. If you've ever found yourself irritated when masking a complicated outline in Photoshop, imagine what it would be like doing it with a scalpel!

Sharpening

Yes, there's a reason why the sharpening tool in Photoshop is called the Unsharp Mask. Again, Haje has a comprehensive explanation here, but the short answer is that images were sharpened using a not-quite-sharp positive of the image to make a mask (an unsharp mask) combined with the negative. The blurriness of the positive image should work with the negative to create a sharper final image.

Split-toning

Maybe you use the split-toning feature in Lightroom to create cross-processed effects, or to give a golden-hour glow to your photos, or perhaps to correct the white balance in your images. But it was originally a darkroom technique that allowed different tones to be present in the highlights and shadows of an image. Split-toning was something of a dark art, relying on the interplay of different papers and different chemical toners deployed after the standard developing and fixing process to produce different colours in the final image. Getting the balance right with your sliders might be a frustrasting experience now, but I'm sure it beats fiddling with gold-, selenium-, and sodium-based chemicals!

Contrast

It might be simple to adjust the contrast in your photos on a slider in a digital darkroom, but you had at least three ways of doing so in an analogue darkroom: with graded papers, with variable contrast paper, or with filters.

Colour

Unless you're shooting with a Leica Monochrom, you can choose between colour or black and white for any given photo now, switching back and forth between them as many times as you like in a non-destructive editing package. But in the early days of film it was black and white, maybe sepia, or perhaps the vagueries of split-toning, unless you opted to hand-colour your images. Love or hate selective colouring, for some people that was all that they could afford when hand colouring was a time-consuming art form. It isn't just a Photoshop abomination.

Airbrush

Finally, the much-maligned airbrush. It's not just a new-fangled phenomenon that magically reduces the size of an already-stick-thin model's thighs. The airbrush has been removing undesirables from images since at least Stalin's time and Cecil Beaton was famous for slimming his subjects.

I think you'll find, then, that there is very little that's new between the red light of the darkroom and the digital glow of Photoshop.

Reflecta's smartphone scanner

Reflecta has just announced a new Smartphone Scanner that allows you to easily (and fairly cheaply) digitise your prints and negatives to your smartphone for easy sharing. I quite like the sound of this. Capable of digitising 35mm negatives as well as 6 by 4" and 5 by 3" prints, the Smartphone Scanner holds your phone in a cradle while the iPhotojet app works to capture the print or negative that's been inserted into the holder. Once the image has been scanned, you can adjust its brightness and colour before saving it or sharing it to Facebook or by email.

It's compatible with iPhone 4 / 4S / 5 / 5S and Galaxy S2 / S3 / S4 and is supplied with all appropriate cradles. You can power it by USB or battery and it's supplied with four AA batteries, a USB cable, holders and a Quick Start Guide.

The Smartphone Scanner is being distributed by Kenro in the UK and Ireland, and will cost about £40.