Add a Spark to Your Lighting With Gels

Natural and or existing light can be and is often very dramatic. However, the problem with natural light is you can't control it very well. Using shade, or a reflector, or some kind of diffuser gives you some limited ability to alter the light, but over all you are pretty well stuck with what nature gives you. Speedlites provide an alternative and versatile source of light, but even those have limitations. I do enjoy using speedlites and in recent years have turned to them more and more as a way to shape the light around my subject. What is exciting about speedlites is their ability to add color to your images thru the use of Gels.

Gels are simply thin transparent plastic sheets that fit over the head of the speedlight. They come in all colors but generally they are used to add warm or cool light to your image. Although they are relatively inexpensive to purchase, you can make your own quite easily. I have used colored, clear plastic document protectors cut to fit my lights. They work great, however the ones you purchase probably do have a more precise color cast to them.

One drawback to using gels is they will often reduce the power output of your lights. Depending on which ones you use and how many are stacked together, you can lose as much as a full stop of light output. This is easily overcome with some simple exposure compensation.

The best use of gels is to use them in such a way you do not realize they are there. A subtle cast of warm light or a gentle cooling effect is often all you need. Most of the time it is best to use them to enhance colors that already exist. The image above is a good example of this. Taken at the Corvette Cafe, we discovered lots of natural occurring bright colors as part of the 1950's diner experience. To create the image I used four speedlights and one 20x30 softbox. One of the lights was placed in the right hand corner of the cafe and used a pale blue gel which helped to enhance the chrome along the diner counter and provided a gentle rim light around our model. It also matched her dress. A pale blue light like this can often liven up dark corners and add a sense of cheeriness to the atmosphere. In the corner directly behind our model a light with red gel was used to fill in another dark space and to provide a matching contrast to the various red splashes found in the cafe. The gelled lights were set to a low power output to prevent overwhelming the image yet they added to the flavor of the scene. They looked like they belonged there and offered a subtle, pleasing effect.

There are times you might want to go for broke and use a strong color to add drama to your image. Bold colored gels can often transform an ordinary look into an image with a great deal of drama. The image below of the classic T-33 / F-80 Shooting Star is a good example. Taken just after dusk, I basically killed all the ambient light with the exposure settings and then built a bubble of light around the aircraft bouncing it off the tarmac so the airplane would define itself within that bubble. The bold nature of the light created a powerful look and transformed this wonderful static display into an image that jumps off the page.

Using Gels can be an exciting way to spice up your images. Used creatively you can turn what might be an ordinary picture into an image with a spark of excitement, one that generates an emotional response. The trick is to make it look like it belongs there.

Why Combining Two Images to Make One is Sometimes Better Than Simply Shooting One Image

Sometimes I over-think things. I tend to get caught up in details of how and why something is the way it is. I've even been told, subtly mind you, that I over-complicate things and sometimes create a cluttered view of what I am talking about as a result. I know this to be true and do take it to heart, no really I do, but I just can't help myself when it comes to something where there is a revelation of sorts that seems to jump out at me. Take for instance the subject of this article. Based on the title you might be thinking, well, there he goes again. You'd probably be right, but hear me out, because I do believe this actually makes sense.

So, why is combining two images to make one, sometimes better than simply shooting one image to start with? Well, let me explain. First of all, this idea does not always apply to every situation.  In most cases a single, well-lit photo of a subject is more than adequate to create an appealing image. However there are circumstances where capturing two or more images, then combining them into one will create a more powerful looking image.

Let's take the picture above of an F-4 Phantom aircraft as an example. In recent weeks I have been concentrating on this particular shoot for several reasons and have included commentary in several blog posts about it. The more I began to study the outcome of this image, the more I began to realize  the final result could not have been made without the combining of two separate images. Had I used lets say six or seven flash units all at once, I potentially could have captured this image in a single shot. However, it would never have looked the same and might have even been inferior to the final image created using four speedlights and two combined images.

The reason is this. Had I used six or seven flash units at the same time, they would have been working against each other. Part of the appeal of this image is the dramatic use of light (red light in this case) bounced off the tarmac and then reflected back into the underside of the aircraft. Two other lights were used to illuminate the outside edges. This combination created the first image. Take notice how the light and shadows along with the reflections created a strong dramatic appearance.

After re-positioning the lights, a second image was created by pointing two lights toward the canopy and filling the front, top, and underside of the aircraft with ordinary white light. This flood of white light bouncing off the tarmac is what would create the problem if they were used at the same time as the wing positioned red lights.

In the final results, the second image was layered on top of the first image. The dramatic red light was then revealed by erasing portions of the top layer and leaving the  top half of the layer alone. Had I used six flash units at the same time, the additional two units pointing toward the canopy would have diluted and washed out the red light and shadows coming from behind the wings. The dramatic red light would no longer have been there, at least not at the same intensity levels. Also, most if not all of the Vanishing Point depth and dimension created by the shadows would have been lost.

By combining two separate exposures, the lighting effects of each individual exposure were fully realized without interfering with each other.

The image above is a sample of a similar aircraft that was captured in a single shot using seven flash units at the same time. Notice how the white lights seem to have washed out the power and strength of the red gelled lights. It's a nice photo, but without the drama that could have been, had we used two separate shots. Not every situation lends itself well to this technique, but, sometimes thinking through a problem and observing the results, however unexpected, can often reveal an exciting outcome.

So...maybe I do over-think problems a bit too much. I suppose it is a bi-product of 30 years of mainframe computer programming where that is what you do...everyday. Building a final image from multiple shots is not a new idea, but combining multiple images with creative lighting just might offer a way to experience the power and versatility of speedlights in a unique way. It sort of occurred to me just how much merit this concept really does warrant.