
Wednesday, 27 January 2010
Another factor that merits probably more consideration than it normally gets is the background. Barry said that he often does a little "gardening" to clear away stray grass, twigs, leaves or even spiders' webs to improve the composition. Background colour too can make the difference between a good and bad photograph. I remember well the shot of viper's bugloss taken against a pale yellow background which showed it off to perfection. It may be necessary to think about exposure to prevent burn-out when photographing, for example, mute swans or white flowers. Conversely, the exposure may need to be put up a stop to bring out feather detail on birds such as cormorants. Beanbags positioned on car windows have a place; Barry's picture of a lapwing was taken in this way. Sometimes a monopod and telephoto lens are preferable, however, especially when there is a need to keep a safe distance away from the subject, and this was the technique used for the photograph of red deer in Richmond Park. It can be easier to photograph shy animals in surroundings where they are more used to people: witness the shot of a grey heron taken at the London Wetland Centre in Barnes. On windy days a light tent is helpful to prevent movement. We saw a shot of a Chiltern gentian taken in this way. And if all else fails, then a visit to the British Wildlife Centre in East Surrey can be well worth the journey for capturing on film animals such as otters and wildcats.
I have mentioned some of the photographs we saw that illustrated the points made by our lecturer. But there were plenty of other memorable pictures. I recall the shot of the larva of a privet hawk-moth for which Barry was awarded the runner-up prize in a Butterfly of the Year competition; and the pictures of a lovely Emperor moth larva taken on Thursley Common, a carnival beetle, and an arctic tern set against a white background. Many will know of this little (it is only about 15 inches long) bird's legendary migration from the Arctic to Antarctica and back each year, a round distance of about 25,000 miles ( but I understand from recent research that some individuals actually travel a total of about 50,000 miles annually). And as a result of moving between Arctic and Antarctic summers, the arctic tern sees more daylight than any other creature on earth. I also remember the slide of a gorgeous red fox. And that of a blue tit whose chicks need to hatch precisely when their main food, moth caterpillars, are emerging from their eggs in the oak trees. It was not mentioned at the time, but another facet of this tiny bird that I find fascinating is the fact that the males have an ultraviolet radiance that is reflected from their caps, which just look blue to us, but which can be detected by other blue tits; the more intense the light, the more attractive the male is to the female. From Bulgaria, there was an appealing photograph of a pretty nesting little ringed plover and from the Greek island of Lesbos a Kentish plover together with a black winged stilt (the bird with the longest legs compared to its size). A very varied evening then; a good illustration of biodiversity together with useful tips for our photographers.
Brian Shreeve
Wednesday, 27 January 2010
Sunday, 10 January 2010