Friday, 16 December 2016

Camera Basics and Exposure Control

Today's article from our friends at Picture Correct gives an in depth look into the very basics of exposure control in your camera. It is written by Richard French who has been a photographer for over 20 years. Many of his images can be seen on his smugmug site and he also shoots stock photography for Fotolia. He also has images in several galleries in his local area.

Your camera is actually nothing more than a box with a hole in it. Yes, all that money you’ve spent and that is basically what you’ve got. The basics of a camera have changed very little since day one. You have a box with a hole in it and you control how much light is allowed into it.

The best part about newer cameras is that they can think for you. They meter a scene and adjust the settings. These settings are simply the shutter and the aperture. You simply have to compose the shot and push a button. This works well for the most part. But, you didn’t spend all of that money to allow the camera to do all of the work for you, did you?...............Follow this link to read the full article.
In the article Richard talks about ISO and Shutter Speed. The following two images of mine from Rome are both taken at a shutter speed of 1/80 but the first taken indoors where I couldn't use a tripod or flash, so I boosted the ISO to 5000, while the second was taken in bright sunlight so I was able to use the recommended ISO of 100.
St. Peter's Baldachin 
St. Peter's Baldachin (Italian: Baldacchino di San Pietro) is a large Baroque sculpted bronze canopy, technically called a ciborium or baldachin, over the high altar of St. Peter's Basilica in the Vatican City. The baldachin is at the centre of the crossing and directly under the dome of the basilica. Designed by the Italian artist Gian Lorenzo Bernini, it was intended to mark, in a monumental way, the place of Saint Peter's tomb underneath. Under its canopy is the high altar of the basilica. Commissioned by Pope Urban VIII, the work began in 1623 and ended in 1634. The baldachin acts as a visual focus within the basilica; it itself is a very large structure and forms a visual mediation between the enormous scale of the building and the human scale of the people officiating at the religious ceremonies at the papal altar beneath its canopy. 
The Temple of Saturn 
The Temple of Saturn has eight surviving columns and was built in 42 BC. The older temple dated from 497 BC but the ruins are from 42 BC. Saturn was regarded as the god-king of Italy and every year at the end of December the Romans celebrated Saturn with the festival called Saturnalia. During the holidays the Romans couldn’t declare war or punish prisoners and the aristocrats would eat and drink with their slaves.

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