Aperture priority is a semi-automatic mode of exposure, where the aperture is selected manually and the exposure time is calculated by the camera in such a way that the correct amount of light reaches the sensor (see the reciprocity principle … Continue reading
Remember the simple equation that defines the exposure? The equation was introduced in the post “How Much Light Is Needed Inside the Camera?” and shows that the exposure (i.e. luminous energy) represents the product between illumination (modulated by the aperture) … Continue reading
About two weeks ago I’ve been asked “I’ve seen some photos when there is blurred like a strip above and below and the middle strip is sharp – any idea how that happens?” The question came when I posted the … Continue reading
This is probably one of the least understood and ignored aspects of using different focal lengths by beginners. They see “zooming” mainly as a way to get closer to or move away from the subject. Which is correct but it … Continue reading
One of the most important components of a digital camera is, obviously, the lens. Its qualities and features are paramount when it comes to camera’s ability to capture the images accurately while offering the photographer a wide range of creative … Continue reading
When I started my posts discussing the camera basics I was tempted to describe the optical phenomena, write some equations and derive from them all the consequences that a photographer should know. It is the Engineer inside of me that … Continue reading
Yesterday I spent few hours in a regional park closed to my home. This park has been my photography playground for a while: it has everything from the beautiful views over the Fraser Valley to the people that come here … Continue reading
The depth of field (DOF) represents the distance between the nearest and the farthest objects in a scene that are perceived as sharp in the final image. It is one of the most creative effects available to photographers at the … Continue reading
As we mentioned in the last post, if we need more light, we can enlarge the hole or keep the hole open a longer time. Enlarging the hole – also named aperture, is usually done mechanically through a set of … Continue reading