Spotter Magazine Spotter Magazine Issue 1 June 2016 | Page 17

If you are in a situation where it is windy, raining, or there is a considerable flow of traffic between yourself and the subject, you will need the shortest exposure time possible. Increasing the time of your exposure will increase the chances of a gust of wind shaking your camera, or an aircraft taxiing in front of your subject, ruining the shot. In such an instance, you will need a wide aperture, to allow sufficient light to hit your sensor On the other hand, an image captured using a wide aperture will be less sharp than one shot with a narrow aperture. The reason for this is the phenomenon known as depth of field. The narrower the aperture, the better your chances that your image will be perfectly sharp and focussed, and all parts of the aircraft will be equally in focus. A word of warning however, narrow apertures will make sensor dust-spots more evident, so a sensor clean is always a good idea. For all tripod-mounted shots, switch off the vibration- reduction / image stabilisation function on your lens or camera. Stabilisation systems assume that there will always be some extent of motion, so mounting it on a stable tripod tends to confuse the system, leading to blurry results. Positioning So, it is generally agreed that, in an ideal world, we would be shooting as long an exposure as long as possible to allow a narrow aperture, which will give us a sharply-focussed photo, even at a low ISO setting. Now we need to see about positioning ourselves to take our shot. Most airport ramps tend to be well lit, but this does not always work to the photographer’s advantage. Check the light sources in your frame. Are they all pointing at the aircraft? Is there any light source exposed in the frame? Having a floodlight in your picture will potentially ruin the shot, and you will need to compensate for it. First of all, try to re-position yourself to hide the floodlight with the aircraft itself, especially the tail. If you’re not working on fully-manual mode, set a narrow light-metering mode and move the metering point to an area of the aircraft which is not particularly well-lit. That should help your camera work towards exposing the aircraft correctly, but you may still have to fine-tune your settings by opting for full Manual mode or programming some aperture compensation. Another special word of warning concerning lights facing your camera. These could be anything from headlamps of ground vehicles to landing lights and floodlights. Using a very narrow exposure will lead to a ‘star-effect’ in the lights. Of course, this could be a beautiful effect in a photo, but could also be a bit distracting, so make sure you have the right settings to control this effect. If it gets too pronounced, go for a wider aperture. Timing Finally, a word about timing a photo. Airliners have a relatively rapid turnaround, so you will probably want to capture the aircraft with the least clutter around it as possible, which is usually around start-up. It is highly recommended that you position yourself and prepare your camera well in advance, taking a few test shots along the way, in order to ensure that in those few minutes between the aircraft being fully clear and it actually starting to move, you already have all the settings to take your shot. Take your picture as quickly as possible, as once the taxi-ing lights or landing lights are on, you will have to reprogram your camera completely! Practice, Practice, Practice! And finally, the usual last piece of advice. Practice is the only way you will learn to deal with nightshot situations quickly an d effectively. Don’t wait till there’s something rare at your airport to take your first nightshot – practice on the Easyjets and Ryanairs. That way you will be ready when a real star comes along!