Thursday, May 18, 2006

Close Up Landscape Photography

Image: By Stanier Images (copyright)

One of the most enjoyable aspects of landscape photography is that of observing more closely the small details of nature that most walkers would pass by with just the merest of glances, if noticed at all. Profound truths can be contemplated when one looks open-mindedly at the intricate patterns caused for instance by the formation of ice crystals or the orchestrated flow of water over an arrangement of rocks in a stream. One wonders which artist created such compositions, or what garden designer thought of such wondrous tapestries of colour! Indeed, much, if not most art is merely a reflection of nature, the character of nature. One only has to see the “organic” art works of Andy Goldsworthy to recognise this depth of relationship between nature and creator. This line is thinner than anyone might admit. All rhythms and sensuality, or even cold logic are all found within the structures of nature. Human yearnings and aspirations are often inspired by the works of nature. Business motivation posters often feature images of a person standing on the edge of the Grand Canyon’s vastness. Nature represents greatness. We look to it, we look into it and our whole being responds to it. It generates in us a full spectrum of emotional responses. Why? Because the creator of nature is the creator of man. Our relationship with nature is profound. We are intangibly bonded. The Christian bible says our bodies were created from the dust, but was elevated when God breathed His spirit into man bringing life.

So what has this to do with Close up photography? I hope that as a reader of these blogs you will see that my approach to photography is not just technical. Without real personal meaning in what I do photography would just be an exercise, and this does not interest me. I am an emotional, spiritual being, one who searches for significance in the person I am and the world around me. Close up photography reveals to me the sheer wonder of nature and makes me ask the question – how did it come to be so organised, so beautiful and so meaningful to me. Most strive for order in our gardens showing man’s intervention, man’s eagerness to bring nature into a structured aesthetic based on cultural, artistic tendencies of our age. But in close up photography my aim is to show that this order already existed before man ever attempted to tame and organise it. That in the seeming chaos of nature there is a profound order, and that it hooks into our very beings as we gaze into the beauty of it.

Sunday, May 14, 2006

Using a spot meter for landscape photography

For many learning photographers the subject of exposure can be intimidating, or at least difficult to grasp. It is in fact an extremely simple concept. The difficulty lies in understanding the lighting situation you face and learning to make the correct decisions. Of course, automatic matrix exposure systems make even the most complicated lighting situation (e.g. wide contrast of light and dark within a scene) a “walk in the park” when wanting to render the scene correctly. But this is where the problem is. What is the correct exposure? Camera manufacturers spend years of development research to come up with ever more advanced exposure meters with complex computers built in to make that decision – what your exposure should be. Whilst such auto exposure meters are superb nowadays, there are situations where they are next to useless unless you can access their manual overrides, or even better, their spot meter mode. Why? Because ultimately, the photographer is the one who is creating the photograph, not the computer. The computer won’t know that you want to emphasise the shaft of light coming through the window, with deep black all around it. The computer will only see bright light and darkness and try to find the “middle” ground. What you have is a weakened exposure. What ought to be black will have unwanted shadow detail, and the details in the shaft of light will be too light. The computer takes over as author of your photograph, and this is wrong!

Exposure of light to film is not just a technical exercise and choice, but it is ultimately a creative one. You photograph a sunset at different exposures and you will get a radically different effect, none particularly wrong, but will hold a different emphasis and feel. A yellowish sunset will go very orange or red if you “under” expose. A decision you have made in exposure changes the final outcome of the image, for many unwittingly.

I am not going to try and explain how exposure works, i.e. the relationship between aperture, shutter and film speed. But for those who have a basic grasp of exposure I would like to advise you to look at using the “spot meter”. There are devices which are solely spot meters, and I use a Pentax digital spot meter which takes a 1 degree reading. In other words, I can take a reflected light reading from a minute area of the scene. If I take a light reading from every part of the image I know exactly what will happen to my final photograph based on my choice of exposure. There will far less chance of any nasty surprises when seeing the resulting image! Of course, I am speaking of film. With digital one can take and retake many exposures through “bracketing”. But sometimes, even then, you can misinterpret what result you are seeing on the small viewfinder of the camera with what you actually captured. Many digital cameras have spot meter modes, so why not use it? To be sure, a spot meter is the most effective method of working out exposure in landscape photography. A fine example that explores these principals is through Ansel Adam’s renowned Zone system. This system can be applied to colour, not just black and white.

Perhaps one of the most useful reasons for using a spot meter is to assess what strength neutral density filters are needed to balance out contrast in the scene. If the contrast is too high, then neither film or digital can cope with it. The most typical example of high contrast is when the foreground is much darker than the sky. Again, I am not going to get technical, but you generally have only 5 stops to work with when considering your exposure starting from the “average”. By saying that, I may have lost the majority of those reading this. Don’t worry. As a rule of thumb, if you are taking a scene with sky and foreground in it, your image will almost certainly benefit from a neutral density filter. Such a filter has half of it “painted” with a tint, like sunglasses if you will! It stops some light getting into the upper half of the image, thus balancing out the bright light of the sky with the darker foreground, resulting in an image that is well exposued. No automatic exposure meter has yet been able to duplicate this effect (although I would anticipate this happening one day!). A collection of different strength neutral density filters is standard essential kit for any professional landscape photographer. It makes or breaks a superb image. If you can only afford one filter, buy this one!

If you want a more thorough treatment on either exposure or use of a spot meter then please comment on this blog and I will do my best to explain the principals in layman’s terms, using practical working examples.