When you change the way you look at things, the things you look at change! In technical terms of photography, the way various elements in a composition appear to be separated from each other, is called perspective. This is a matter of confusion for many especially with the proliferation of zoom lenses in the market. Now zooms come as standard kit lenses with most DSLRs and so what some of the discussions on perspective and lenses earlier conveyed, is now confusing for many.
Light is the fundamental tool for photography that every photographer should understand well. As a photographer, the way you understand light is very different to how everyone else understands light.
(Grains lit by hard sunlight – Nikon D200 with Nikkor 18-35mm lens, f/11, 1/25, 100 ISO)
There is an unseen world in small details waiting to be discovered. Going close and photographing these small details is what makes macro photography special. There are different definitions for macro photography. Macro photography is generally termed as photographs that are taken at close proximity to the subject in a manner that the scene in front of the lens being captured is of the same size as the sensor. The lens has to focus really close for this.
(Flower bud photographed with Sigma 105mm macro EX DG lens mounted on a Nikon D200 body, f/8, 1/250 sec at ISO 100)
Preview screen at the back of the digital cameras is a wonderful tool to assess the exposure. Though present in all the good cameras, very few people use it. Histograms when used properly can be a very simple tool to take care of all your metering related problems.
(Histograms as seen on a Nikon preview screens)
Quite frequently photographers use shallow depth of field so as to make the main subject stand out. However many photographers forget the effects of this blurred background on the overall image. Bokeh is a fancy term that is used to indicate this out of focus area.
(Decorative lights with Bokeh – captured with a 135mm lens at f/2.8, 1/160 sec)
Exposure is the amount of light per unit area reaching the film or sensor. A well exposed film has all the tonal values it can capture. A well exposed digital image has a histogram spread across all the values. Exposure is what determines how the image is captured. This is a concise article on understanding exposure and the factors that determine it.
Unintentional blur which is caused by camera movement can take a toll on good photographs. Large amount of camera shake appears as obvious blurs or multiple overlapping images. What many photographers do not know if that small amount of camera shake can soften the image without causing any obvious blurs. Camera shake is best prevented by use of some simple techniques and precautions.